| Journal Articles: 425 results |
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Identification of Secondary Metabolites in Citrus Fruit Using Gas Chromatography and Mass Spectroscopy Jean-Michel Lavoie, Esteban Chornet, and André Pelletier
Using a simple extraction and a gas chromatograph coupled with a mass spectrometer, this protocol allows students in analytical or organic chemistry to quantify and qualify monoterpenes from the peels of limes, grapefruits, and oranges.
Lavoie, Jean-Michel; Chornet, Esteban; Pelletier, André. J. Chem. Educ. 2008, 85, 1555.
Alkenes |
Food Science |
Gas Chromatography |
Mass Spectrometry |
Natural Products |
Plant Chemistry |
Qualitative Analysis |
Quantitative Analysis
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NMR and IR Spectroscopy for the Structural Characterization of Edible Fats and Oils Molly W. Crowther
This article describes an upper-level instrumental laboratory for undergraduates that explores the complementary nature of IR and NMR spectroscopy in the analysis of five edible and structurally similar fats and oils for average chain length, degree of unsaturation, and trans fat content.
Crowther, Molly W. J. Chem. Educ. 2008, 85, 1550.
Consumer Chemistry |
Food Science |
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis |
Spectroscopy |
Fatty Acids
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Greener Alternative to Qualitative Analysis for Cations without H2S and Other Sulfur-Containing Compounds Indu Tucker Sidhwani and Sushmita Chowdhury
The classic technique for the qualitative analysis of inorganic salts and mixtures relies on highly toxic hydrogen sulfide. Increasing environmental awareness has prompted the development of a green scheme for the detection of cations by spot tests that is simple and fast.
Sidhwani, Indu Tucker; Chowdhury, Sushmita. J. Chem. Educ. 2008, 85, 1099.
Green Chemistry |
Qualitative Analysis |
Separation Science
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Identification of an Unknown Compound by Combined Use of IR, 1H NMR, 13C NMR, and Mass Spectrometry: A Real-Life Experience in Structure Determination Louis J. Liotta and Magdalena James-Pederson
In this introductory organic chemistry experiment, students are expected to operate NMR, IR, and GCMS instrumentation to obtain spectra which are interpreted to elucidate the chemical structure of the assigned compounds without the benefit of a list of possible unknowns.
Liotta, Louis J.; James-Pederson, Magdalena. J. Chem. Educ. 2008, 85, 832.
Gas Chromatography |
Instrumental Methods |
IR Spectroscopy |
Mass Spectrometry |
Molecular Properties / Structure |
NMR Spectroscopy |
Qualitative Analysis |
Spectroscopy
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Converting Municipal Waste into Automobile Fuel: Ethanol from Newspaper Mark Mascal and Richard Scown
In this experiment, waste newspaper is pulped with acid and its cellulose hydrolyzed to produce glucose syrup that is fermented and distilled to yield ethanol. In doing so, students are introduced to carbohydrate chemistry and the use of fermentation in organic synthesis.
Mascal, Mark; Scown, Richard. J. Chem. Educ. 2008, 85, 546.
Acids / Bases |
Alcohols |
Applications of Chemistry |
Biotechnology |
Carbohydrates |
Qualitative Analysis |
Synthesis |
Thin Layer Chromatography
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ATR–FTIR Spectroscopy in the Undergraduate Chemistry Laboratory Jennifer D. Schuttlefield and Vicki H. Grassian
Presents several examples of the use of attenuated total reflectance-Fourier transform infrared spectroscopy in the undergraduate chemistry laboratory, including measuring the infrared spectra of solid and liquid organic compounds commonly used as unknowns and of inorganic solids synthesized by students.
Schuttlefield, Jennifer D.; Grassian, Vicki H. J. Chem. Educ. 2008, 85, 279.
IR Spectroscopy |
Liquids |
Qualitative Analysis |
Quantitative Analysis |
Solids |
Undergraduate Research
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A Qualitative Organic Analysis That Exploits the Senses of Smell, Touch, and Sound Deborah C. Bromfield-Lee and Maria T. Oliver-Hoyo
In this sensorial laboratory, students differentiate a variety of compounds by their aromas and, based on their olfactory classification, identify an unknown functional group. They then perform chemical tests incorporating touch, smell, and sound to confirm the functional group present.
Bromfield-Lee, Deborah C.; Oliver-Hoyo, Maria T. J. Chem. Educ. 2007, 84, 1976.
Qualitative Analysis
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A New Colorimetric Assay of Tabletop Sweeteners Using a Modified Biuret Reagent Christopher J. Fenk, Nathan Kaufman, and Donald G. Gerbig, Jr.
Presents a new, fast and effective colorimetric analysis of aspartame that incorporates a less caustic biuret reagent and visible spectroscopic analysis for selective detection in aqueous solutions using readily available instrumentation.
Fenk, Christopher J.; Kaufman, Nathan; Gerbig, Donald G., Jr. J. Chem. Educ. 2007, 84, 1676.
Consumer Chemistry |
Coordination Compounds |
Crystal Field / Ligand Field Theory |
Food Science |
Qualitative Analysis |
Quantitative Analysis |
UV-Vis Spectroscopy |
Amino Acids
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Optical Properties of Fluorescent Mixtures: Comparing Quantum Dots to Organic Dyes Benjamin M. Hutchins, Thomas T. Morgan, Miné G. Ucak-Astarlioglu, and Mary Elizabeth Williams
Visually observed fluorescent colors of quantum dots in conjunction with spectroscopic data show students the additive emission of such mixtures; while some appear to emit white light, their fluorescence peaks remain spectroscopically resolved.
Hutchins, Benjamin M.; Morgan, Thomas T.; Ucak-Astarlioglu, Miné G.; Williams, Mary Elizabeth. J. Chem. Educ. 2007, 84, 1301.
Dyes / Pigments |
Fluorescence Spectroscopy |
Materials Science |
Nanotechnology |
Photochemistry |
Qualitative Analysis |
Spectroscopy |
UV-Vis Spectroscopy
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Digitally Enhanced Thin-Layer Chromatography: An Inexpensive, New Technique for Qualitative and Quantitative Analysis Amber Victoria Irish Hess
Thin-layer chromatography enhanced by digital photography is ideal for high school and college labs and can perform qualitative and quantitative analysis comparable to more expensive, high-performance TLC equipment. Using common photo-editing software, one can quickly produce multi-spectral scans, densitograms, and calibration curves, output previously limited to HPTLC.
Hess, Amber Victoria Irish. J. Chem. Educ. 2007, 84, 842.
Laboratory Equipment / Apparatus |
Qualitative Analysis |
Quantitative Analysis |
Thin Layer Chromatography |
Instrumental Methods |
Chromatography
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A Disciplined Chemical Puzzle Miguel Peris
A puzzle is presented as an entertaining learning activity for intermediate-level chemistry students. Data required to solve the puzzle is obtained by deducing information from clues based on inorganic and organic chemistry.
Peris, Miguel. J. Chem. Educ. 2007, 84, 609.
Aqueous Solution Chemistry |
Descriptive Chemistry |
Qualitative Analysis |
Quantitative Analysis
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A Discovery-Learning 2,4-Dinitrophenylhydrazone Experiment Bruno M. Vittimberga and Ben Ruekberg
Selections of liquid aldehydes and ketones are proposed for students to determine what property is the best predictor of the color (yellow to red) of their 2,4-dinitrophenylhydrazone derivative. Students may use a computer (spreadsheet or word processor) to analyze their results.
Vittimberga, Bruno M.; Ruekberg, Ben. J. Chem. Educ. 2006, 83, 1661.
Aldehydes / Ketones |
Molecular Properties / Structure |
Physical Properties |
Qualitative Analysis
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Infrared Examination of the Transformation of Barium Sulfate into Barium Carbonate. An Inorganic Infrared Qualitative and Quantitative Experiment Gene E. Kalbus, Van T. Lieu, and Lee H. Kalbus
This experiment provides an interesting pedagogical exercise that not only demonstrates the value of infrared spectroscopy in the investigation of inorganic systems, but also visually illustrates a procedure used in classical wet chemical qualitative analysis for sample preparation.
Kalbus, Gene E.; Lieu, Van T.; Kalbus, Lee H. J. Chem. Educ. 2006, 83, 910.
Instrumental Methods |
IR Spectroscopy |
Qualitative Analysis |
Quantitative Analysis |
Solids
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Presumptive and Confirmatory Drug Tests Craig Anderson
Tests for illegal drugs were performed on unknowns obtained from over-the-counter cold medicines. Substances that tested positive for the qualitative Marquis color test were found to be false positives for illegal substances, while scopolamine hydrochloride shows a false positive for cocaine hydrochloride with the cobalt thiocyanate reagent.
Anderson, Craig. J. Chem. Educ. 2005, 82, 1809.
Drugs / Pharmaceuticals |
Qualitative Analysis |
Acids / Bases |
Gas Chromatography |
IR Spectroscopy |
Mass Spectrometry
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The Virtual ChemLab Project: A Realistic and Sophisticated Simulation of Organic Synthesis and Organic Qualitative Analysis Brian F. Woodfield, Merritt B. Andrus, Gregory L. Waddoups, Melissa S. Moore, Richard Swan, Rob Allen, Greg Bodily, Tricia Andersen, Jordan Miller, Bryon Simmons, and Richard Stanger
Describes a set of sophisticated and realistic laboratory simulations for use in freshman- and sophomore-level chemistry classes and laboratories called Virtual ChemLab. The purpose of these simulations is to reinforce concepts taught in the classroom, provide an environment for creative learning, and emphasize the thinking behind instructional laboratory experiments.
Woodfield, Brian F.; Andrus, Merritt B.; Waddoups, Gregory L.; Moore, Melissa S.; Swan, Richard; Allen, Rob; Bodily, Greg; Andersen, Tricia; Miller, Jordan; Simmons, Bryon; Stanger, Richard. J. Chem. Educ. 2005, 82, 1728.
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis |
Synthesis |
Reactions |
Thin Layer Chromatography
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Preparation, Analysis, and Characterization of Some Transition Metal Complexes—A Holistic Approach Kristy M. Blyth, Lindsay R. Mullings, David N. Phillips, David Pritchard, and Wilhelm van Bronswijk
In this laboratory procedure, a wide range of complexes are characterized by IR and UVvis spectroscopy, magnetochemistry, and conductance. The results allow one to the deduce the nature and strength of the bonding of the ligand to the central atom and the number of ions that the complex produces in aqueous solution.
Blyth, Kristy M.; Mullings, Lindsay R.; Phillips, David N.; Pritchard, David; van Bronswijk, Wilhelm. J. Chem. Educ. 2005, 82, 1667.
IR Spectroscopy |
Magnetic Properties |
UV-Vis Spectroscopy |
Coordination Compounds |
Qualitative Analysis |
Synthesis |
Conductivity
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NMR Analysis of Unknowns: An Introduction to 2D NMR Spectroscopy David E. Alonso and Steven E. Warren
Second-year organic chemistry students analyze and compare the spectral data of three unknown ketones (2-heptanone, 3-heptanone, and 4-heptanone). Students acquire one-dimensional proton and carbon NMR data for each unknown and make signal assignments based on chemical shifts, integration values, and splitting patterns of signals. Difficulties are encountered during interpretation of NMR data for 2- and 3-heptanone. Acquiring and analyzing the two-dimensional NMR spectra of the heptanones resolve these problems.
Alonso, David E.; Warren, Steven E. J. Chem. Educ. 2005, 82, 1385.
Instrumental Methods |
NMR Spectroscopy |
Qualitative Analysis
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Organic Spectroscopy Laboratory: Utilizing IR and NMR in the Identification of an Unknown Substance Neil M. Glagovich and Timothy D. Shine
An undergraduate organic laboratory designed to teach the use of IR and NMR spectra interpretation in the identification of an unknown substance has been developed. This laboratory requires the student to obtain the IR spectrum of an unknown substance and, from the interpretation of that spectrum, determine which of several possible functional groups is present in the molecule. Using this information and either the melting point or boiling point of the unknown, the student is able to determine a list of likely candidates (usually between eight and twelve suspects collated from a supplied table of possible compounds). The student will then draw the structures for all candidate compounds and, from those structures, predict the 1H- and 13C-NMR spectra for each.
Glagovich, Neil M.; Shine, Timothy D. J. Chem. Educ. 2005, 82, 1382.
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis |
Solids |
Liquids
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Realizing Workplace Skills in Instrumental Analysis John H. Kalivas
Undergraduates entering the workforce often lack key technical skills. This paper describes an approach to teaching an instrumental analysis laboratory that assists students in attaining expertise needed for the work place. The course provides experiences with life-long benefits by developing good laboratory practices in concert with protocols common to commercial and research laboratories.
Kalivas, John H. J. Chem. Educ. 2005, 82, 895.
Instrumental Methods |
Qualitative Analysis |
Quantitative Analysis
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Screening Technique for Lead and Cadmium in Toys and Other Materials Using Atomic Absorption Spectroscopy Henry Brouwer
This article describes a simple method to determine the presence of metals such as lead and cadmium in plastic toys, paints, and other solids using an atomic absorption spectrometer (AAS) without going through the time-consuming sample preparation steps. Basically, the method involves transferring solid sample to a nichrome wire by placing a small sample on a wire loop or touching the heated wire to the sample and then heating the wire in the AAS flame. By choosing the appropriate radiation source and wavelength, the presence of different metals may be determined qualitatively.
Brouwer, Henry. J. Chem. Educ. 2005, 82, 611.
Atomic Spectroscopy |
Consumer Chemistry |
Metals |
Qualitative Analysis |
Metals
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Fractional Distillation of Air and Other Demonstrations with Condensed Gases Maria Oliver-Hoyo and William L. Switzer, III
This demonstration builds upon the commonly performed liquefaction of air not only to show the presence of nitrogen and oxygen, but also the presence of two other components, carbon dioxide and water. Several extensions are suggested: one to show boiling point elevation in solution and another to show the elevation of both boiling point and sublimation point with pressure. No special apparatus is required permitting presentations to audiences in a variety of settings. These demonstrations give the opportunity to discuss properties of gases, solution chemistry, and phase equilibria.
Oliver-Hoyo, Maria; Switzer, William L., III. J. Chem. Educ. 2005, 82, 251.
Gases |
Qualitative Analysis |
Atmospheric Chemistry |
Phases / Phase Transitions / Diagrams |
Separation Science
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Qualitative Organic Analysis—In the Classroom and Laboratory K. Thomas Finley
The identification of molecular structure remains central to the study of chemistry and the search for new and useful materials. The classical methods of qualitative organic analysis provide opportunities to illustrate the fascinating world of science to a broad audience of students at different levels of study. Specific examples of the use of this subject matter with high school students, organic chemistry students, and nonscience students are given.
Finley, K. Thomas. J. Chem. Educ. 2005, 82, 240.
Qualitative Analysis |
Nonmajor Courses
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A Substitute for “Bromine in Carbon Tetrachloride” Joshua M. Daley and Robert G. Landolt
Benzotrifluoride (BTF) is a suitable solvent substitute for carbon tetrachloride in experiments requiring application of bromine (Br2) in free radical or addition reactions with organic substrates. A 1 M solution of Br2 in BTF may be used to distinguish hydrocarbons based on the ease of abstraction of hydrogen atoms in thermally or light-induced free radical substitutions. Efficacy of minimization of solvent use, by aliquot addition to neat samples, has been established.
Daley, Joshua M.; Landolt, Robert G. J. Chem. Educ. 2005, 82, 120.
Alkenes |
Free Radicals |
Green Chemistry |
Qualitative Analysis |
Reactions
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Pressure Dependence of Gas-Phase Reaction Rates Stéphanie de Persis, Alain Dollet, and Francis Teyssandier
This article is intended to show that only simple concepts are required to qualitatively explain and describe the pressure dependence of gas-phase reaction rates.
de Persis, Stéphanie; Dollet, Alain; Teyssandier, Francis. J. Chem. Educ. 2004, 81, 832.
Qualitative Analysis |
Gases |
Kinetics |
Mechanisms of Reactions
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The Chemical Adventures of Sherlock Holmes: Autopsy in Blue Thomas G. Waddell and Thomas R. Rybolt
This story is a chemical mystery with an emphasis on qualitative inorganic analysis, forensic chemistry, and medicinal substances. This is the 15th article in a series presenting a scientific problem in mystery format in the context of the popular and beloved characters Sherlock Holmes and Dr. Watson.
Waddell, Thomas G.; Rybolt, Thomas R. J. Chem. Educ. 2004, 81, 497.
Forensic Chemistry |
Qualitative Analysis
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The Separation and Identification of Two Unknown Solid Organic Compounds: An Experiment for the Sophomore Organic Chemistry Laboratory Patty L. Feist
Students are given a mixture of a solid ketone and a solid alcohol and asked to separate and identify the two components. First the students use TLC to determine the optimum solvent system to separate the two compounds, then they separate the unknowns on a microscale flash chromatography column. The students acquire the melting point, and if possible, the IR and 1H NMR spectra for each separated compound and identify them by matching the observed data with that of known compounds.
Feist, Patty L. J. Chem. Educ. 2004, 81, 109.
Chromatography |
IR Spectroscopy |
Microscale Lab |
NMR Spectroscopy |
Separation Science |
Qualitative Analysis
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Classification of Vegetable Oils by Principal Component Analysis of FTIR Spectra David A. Rusak, Leah M. Brown, and Scott D. Martin
Comparing unknown samples of vegetable oils to known samples using FTIR and principal component analysis (PCA) and nearest means classification (NMC).
Rusak, David A.; Brown, Leah M.; Martin, Scott D. J. Chem. Educ. 2003, 80, 541.
IR Spectroscopy |
Instrumental Methods |
Food Science |
Lipids |
Chemometrics |
Qualitative Analysis |
Fourier Transform Techniques |
Consumer Chemistry |
Applications of Chemistry
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Analysis of Carbon Monoxide in Blood Benjamin P. Huddle and Joseph C. Stephens
Qualitative and quantitative analysis of carbon monoxide in blood using the Conway diffusion method.
Huddle, Benjamin P.; Stephens, Joseph C. J. Chem. Educ. 2003, 80, 441.
Gases |
Toxicology |
UV-Vis Spectroscopy |
Qualitative Analysis |
Quantitative Analysis |
Applications of Chemistry |
Forensic Chemistry
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Basic Atomic and Molecular Spectroscopy ( J. Michael Hollas) Brian K. Taylor
Covers the concepts of quantitative and qualitative spectroscopy without significant mathematical detail.
Taylor, Brian K. J. Chem. Educ. 2003, 80, 389.
Atomic Spectroscopy |
Qualitative Analysis |
Quantitative Analysis
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A Qualitative Investigation of Undergraduate Chemistry Students' Macroscopic Interpretations of the Submicroscopic Structures of Molecules Gayle Nicoll
Study of how undergraduate chemistry students (freshman through senior) translate between symbolic and submicroscopic representations of molecules by building free-form models, given the symbolic formula for the molecules, and whether these conceptions change with increased chemistry instruction.
Nicoll, Gayle. J. Chem. Educ. 2003, 80, 205.
Kinetic-Molecular Theory |
Molecular Modeling |
Qualitative Analysis
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Identifying a Protein by MALDI–TOF Mass Spectrometry: An Experiment for the Undergraduate Laboratory Anne E. Counterman, Matthew S. Thompson, and David E. Clemmer
Experiment that requires students to use mass spectral data (MALDI-TOF) to find the identity of an unknown protein sample by performing a database search on the Internet.
Counterman, Anne E.; Thompson, Matthew S.; Clemmer, David E. J. Chem. Educ. 2003, 80, 177.
Mass Spectrometry |
Proteins / Peptides |
Instrumental Methods |
Qualitative Analysis
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Micelle-Mediated Extraction of Heavy Metals from Environmental Samples: An Environmental Green Chemistry Laboratory Experiment Dimosthenis L. Giokas, Evangelos K. Paleologos, and Miltiades I. Karayannis
A laboratory focussing on the determination of metallic elements in drinking water through cloud-point extraction.
Giokas, Dimosthenis L.; Paleologos, Evangelos K.; Karayannis, Miltiades I. J. Chem. Educ. 2003, 80, 61.
Atomic Spectroscopy |
Metals |
Micelles |
Separation Science |
Green Chemistry |
Qualitative Analysis |
Quantitative Analysis
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The Analysis of Seawater: A Laboratory-Centered Learning Project in General Chemistry Jodye I. Selco, Julian L. Roberts, Jr., and Daniel B. Wacks
Experiment designed to introduce students to qualitative and quantitative analysis methods (gravimetric analysis, potentiometric titration, ion-selective electrodes, and atomic absorption and atomic emission spectroscopy) in the context of an overall analysis of an environmental sample.
Selco, Jodye I.; Roberts, Julian L., Jr.; Wacks, Daniel B. J. Chem. Educ. 2003, 80, 54.
Aqueous Solution Chemistry |
Instrumental Methods |
Qualitative Analysis |
Quantitative Analysis |
Water / Water Chemistry |
Gravimetric Analysis |
Titration / Volumetric Analysis |
Ion Selective Electrodes |
Atomic Spectroscopy |
Potentiometry
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Application of Datalogger in Biosensing: A Glucose Biosensor Martin M. F. Choi and Pui Shan Wong
Using an eggshell as a platform for the immobilization of glucose oxidase while determining glucose concentration through the depletion of oxygen as measured by an oxygen sensor and datalogger.
Choi, Martin M. F.; Wong, Pui Shan. J. Chem. Educ. 2002, 79, 982.
Carbohydrates |
Enzymes |
Instrumental Methods |
Laboratory Computing / Interfacing |
Qualitative Analysis |
Quantitative Analysis
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Synthesis and Characterization of a Gasoline Oxygenate, Ethyl tert-Butyl Ether Craig J. Donahue, Teresa D'Amico, and Jennifer A. Exline
Procedure for the synthesis and characterization of ethyl tert-butyl ether.
Donahue, Craig J.; D'Amico, Teresa; Exline, Jennifer A. J. Chem. Educ. 2002, 79, 724.
Chromatography |
Synthesis |
Ethers |
Gas Chromatography |
IR Spectroscopy |
Qualitative Analysis
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Fractional Distillation and GC Analysis of Hydrocarbon Mixtures Craig J. Donahue
Separating and identifying the components of a three-hydrocarbon mixture through fractional distillation and gas chromatography.
Donahue, Craig J. J. Chem. Educ. 2002, 79, 721.
Chromatography |
Gas Chromatography |
Separation Science |
Alkanes / Cycloalkanes |
Alkenes |
Aromatic Compounds |
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis
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Identification of Flavor Components in Perfumes by Headspace Solid-Phase Microextraction and Gas Chromatography-Mass Spectrometry Gerd Knupp, Peter Kusch, and Michael Neugebauer
Experiment for the identification of flavor components in commercial perfume through headspace-solid-phase extraction (HS-SPME) followed by GC-MS.
Knupp, Gerd; Kusch, Peter; Neugebauer, Michael. J. Chem. Educ. 2002, 79, 98.
Chromatography |
Mass Spectrometry |
Qualitative Analysis |
Consumer Chemistry
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Leopold's Workbench: The Hapsburg-Lorraine Grand Duke and Chemistry Gianfranco Scorrano, Nicoletta Nicolini, and Ida M. Masoner
Analysis of the contents of containers preserved in unlabeled glass bottles within the desk of Leopold, Grand Duke of Tuscany (1765-1790), and consideration of their potential use.
Scorrano, Gianfranco; Nicolini, Nicoletta; Masoner, Ida M. J. Chem. Educ. 2002, 79, 47.
Qualitative Analysis
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Raman Spectroscopy with a Fiber-Optic Probe and Multichannel Detection Thomas J. Vickers, Jeanne Pecha, and Charles K. Mann
Exercise emphasizing instrumental methods of chemical analysis of solids and liquids relying on Raman spectroscopy.
Vickers, Thomas J.; Pecha, Jeanne; Mann, Charles K. J. Chem. Educ. 2001, 78, 1674.
Instrumental Methods |
Raman Spectroscopy |
Qualitative Analysis
|
Cigarette Smoke Analysis Using an Inexpensive Gas-Phase IR Cell N. Garizi, A. Macias, T. Furch, R. Fan, P. Wagenknecht, and K. A. Singmaster
A PVC gas cell used to collect and analyze cigarette smoke and car exhaust through IR spectroscopy.
Garizi, N.; Macias, A.; Furch, T.; Fan, R.; Wagenknecht, P.; Singmaster, K. A. J. Chem. Educ. 2001, 78, 1665.
Atmospheric Chemistry |
IR Spectroscopy |
Fourier Transform Techniques |
Laboratory Equipment / Apparatus |
Qualitative Analysis
|
Relating Qualitative Analysis to Equilibrium Principles Glenn V. Lo
Mathcad document intended for a prelab activity for qualitative analysis experiments.
Lo, Glenn V. J. Chem. Educ. 2001, 78, 1557.
Qualitative Analysis |
Equilibrium |
Mathematics / Symbolic Mathematics |
Precipitation / Solubility
|
Using Capillary Electrophoresis to Determine the Purity of Acetylsalicylic Acid Synthesized in the Undergraduate Laboratory Frank Welder and Christa L. Colyer
Determination of the concentration of synthesized acetylsalicylic acid and unreacted salicylic acid using capillary electrophoresis.
Welder, Frank; Colyer, Christa L. J. Chem. Educ. 2001, 78, 1525.
Electrophoresis |
Instrumental Methods |
Qualitative Analysis |
Separation Science |
Quantitative Analysis
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An Alternative Confirmatory Test for Silver Ion in Qualitative Analysis Louis J. Kirschenbaum, Elmo Resende, Edwin Li, and Ben Ruekberg
Confirmatory test for silver ion that reduces volume and toxicity of waste involved by using ascorbic acid.
Kirschenbaum, Louis J.; Resende, Elmo; Li, Edwin; Ruekberg, Ben. J. Chem. Educ. 2001, 78, 1524.
Qualitative Analysis
|
Analysis of Zinc Tablets: An Extension to a Stoichiometry Experiment Steven Murov and Brian Stedjee
Titration of ferrocyanide solutions with zinc ion.
Murov, Steven; Stedjee, Brian. J. Chem. Educ. 2001, 78, 1389.
Quantitative Analysis |
Stoichiometry |
Titration / Volumetric Analysis |
Qualitative Analysis
|
A Modification of a Lactase Experiment by Use of Commercial Test Strips Tammy J. Melton
Using urinalysis test strips to detect the presence of glucose.
Melton, Tammy J. J. Chem. Educ. 2001, 78, 1243.
Carbohydrates |
Catalysis |
Drugs / Pharmaceuticals |
Enzymes |
Nonmajor Courses |
Qualitative Analysis |
Laboratory Equipment / Apparatus
|
Was the Driver Drunk? An Instrumental Methods Experiment for the Determination of Blood Alcohol Content Jennifer L. Zabzdyr and Sheri J. Lillard
Forensic-based experiment to motivate correct analytical procedures and careful interpretation of data by using gas chromatography with flame ionization detection.
Zabzdyr, Jennifer L.; Lillard, Sheri J. J. Chem. Educ. 2001, 78, 1225.
Chromatography |
Instrumental Methods |
Applications of Chemistry |
Forensic Chemistry |
Quantitative Analysis |
Qualitative Analysis |
Alcohols |
Gas Chromatography
|
The TCICA Test for Distinguishing Aldehydes and Ketones Gene A. Hiegel, Christine Juska, and Michelle Kim
Distinguishing aldehydes from ketones through their reaction with TCICA (trichloroisocyanuric acid).
Hiegel, Gene A.; Juska, Christine; Kim, Michelle. J. Chem. Educ. 2001, 78, 1105.
Qualitative Analysis |
Aldehydes / Ketones
|
Distinguishing Calcium Carbonate from Calcium Sulfate Dihydrate by Instrumental Methods. A Set of Laboratory Experiments for Analytical Chemistry and Spectroscopy Eugenio Garribba, Giovanni Micera, Liliana Strinna-Erre, and Giovanna Stara
Distinguishing calcium carbonate from calcium sulfate dihydrate through chemical analysis, thermal analysis and decomposition, IR spectroscopy, NIR spectroscopy, and EDXRF spectroscopy.
Garribba, Eugenio; Micera, Giovanni; Strinna-Erre, Liliana; Stara, Giovanna. J. Chem. Educ. 2001, 78, 1090.
Instrumental Methods |
IR Spectroscopy |
Thermal Analysis |
Qualitative Analysis
|
A More Realistic Teaching Style in Spectroscopic Instruction Mar Gómez Gallego, Santiago Romano, Miguel A. Sierra, and Enrique Nieto
A practical application of spectroscopic analysis in intermediate and advanced organic chemistry to determine reaction mechanisms and identify products; provides three specific problems.
Gallego, Mar Gómez; Romano, Santiago; Sierra, Miguel A.; Nieto, Enrique. J. Chem. Educ. 2001, 78, 765.
Mechanisms of Reactions |
NMR Spectroscopy |
Learning Theories |
Spectroscopy |
Molecular Properties / Structure |
Qualitative Analysis
|
Surfactant-Induced Osazone Formation at Room Temperature K. Nagajyothi, P. S. Raghavan, and R. Gopalan
Using surfactants for speedy and easy identification of reducing sugars without heating.
Nagajyothi, K.; Raghavan, P. S.; Gopalan, R. J. Chem. Educ. 2001, 78, 728.
Catalysis |
Micelles |
Surface Science |
Carbohydrates |
Qualitative Analysis
|
From GC to the NMR: A Simple Semipreparative Gas Chromatography Collection Method Using NMR Tubes Andrew R. Bressette
Semipreparative gas chromatography is an excellent technique for isolating small amounts of volatile compounds from mixtures. A new, inexpensive semipreparative GC collection tube was developed utilizing a standard 5-mm NMR tube to collect the purified samples.
Bressette, Andrew R. J. Chem. Educ. 2001, 78, 366.
Chromatography |
Laboratory Equipment / Apparatus |
Microscale Lab |
Qualitative Analysis |
Gas Chromatography
|
Sampling Technique for Organic Solids in IR Spectroscopy: Thin Solid Films as the Method of Choice in Teaching Laboratories Patty L. Feist
Techniques for sampling solid organic compounds for FTIR spectroscopy are briefly compared and contrasted. One method, called thin solid films, stands out as the method of choice in undergraduate laboratories because they are easy and inexpensive to prepare; the spectra obtained are of good to excellent quality.
Feist, Patty L. J. Chem. Educ. 2001, 78, 351.
IR Spectroscopy |
Instrumental Methods |
Fourier Transform Techniques |
Qualitative Analysis
|
Undergraduate Science and Engineering Students' Understanding of the Reliability of Chemical Data Bette Davidowitz, Fred Lubben, and Marissa Rollnick
This study investigates the status of procedural knowledge of sophomore science and chemical engineering students in South Africa. Procedural knowledge includes collection, manipulation, and interpretation of experimental data. Some implications for teaching are given.
Davidowitz, Bette; Lubben, Fred; Rollnick, Marissa. J. Chem. Educ. 2001, 78, 247.
Qualitative Analysis |
Learning Theories
|
Determination of Flavonoids in Wine by High Performance Liquid Chromatography Celeste da Queija, M. A. Queirós, and Ligia M. Rodrigues
An application of HPLC to the analysis of flavonoids in wines, designed for students of instrumental methods. This laboratory work is very attractive to students because they deal with a common daily product whose components are reported to have preventive and therapeutic effects.
da Queija, Celeste; Queirós, M. A.; Rodrigues, Ligia M. J. Chem. Educ. 2001, 78, 236.
Chromatography |
Instrumental Methods |
Qualitative Analysis |
Quantitative Analysis |
HPLC
|
A Novel Experiment for Fast and Simple Determination of the Oxygen Content in the Air Metodija Najdoski and Vladimir M. Petrusevski
The reaction between nitric oxide (NO) and oxygen is used for determination of the oxygen content in the air. The nitrogen dioxide thus produced is dissolved in water. The volume decrease of the gas enables quick and accurate enough determination of the O2 content. The results of 20 measurements give %O2 = 21.04 0.63.
Najdoski, Metodija; Petrusevski, Vladimir M. J. Chem. Educ. 2000, 77, 1447.
Gases |
Qualitative Analysis |
Quantitative Analysis |
Atmospheric Chemistry
|
INQUAL-S Victor I. Bendall and Sean Johnson
INQUAL-S is a simulation of inorganic qualitative analysis using the insolubility of sulfides as the main avenue to separation. This simulation allows for the identification of eighteen common cations in a mixture of their nitrates.
Bendall, Victor I.; Johnson, S. J. Chem. Educ. 2000, 77, 936.
Descriptive Chemistry |
Qualitative Analysis
|
Preparation and Analysis of Multiple Hydrates of Simple Salts Richard W. Schaeffer, Benny Chan, Shireen R. Marshall, Brian Blasiole, Neetha Khan, Kendra L. Yoder, Melissa E. Trainer, and Claude H. Yoder
A laboratory project in which students prepare a series of hydrates of simple salts and then determine the extent of hydration of the product(s); provides a good introduction to the concepts of solubility, saturation, recrystallization, relative compound stability, and simple gravimetric analysis.
Schaeffer, Richard W.; Chan, Benny; Marshall, Shireen R.; Blasiole, Brian; Khan, Neetha; Yoder, Kendra L.; Trainer, Melissa E.; Yoder, Claude H. J. Chem. Educ. 2000, 77, 509.
Stoichiometry |
Qualitative Analysis |
Crystals / Crystallography |
Precipitation / Solubility |
Gravimetric Analysis |
Quantitative Analysis
|
Organic Chemistry in Capillaries Bharat G. Mahamulkar, Dilip D. Dhavale, and Shriniwas L. Kelkar
Capillaries are put to several uses such as checking the solubility, detecting a functional group, and performing reactions. These innovative uses of open-ended capillaries reduce the consumption of chemicals, solvents, and reagents and considerably lessen the time required to perform all these functions.
Mahamulkar, Bharat G.; Dhavale, Dilip D.; Kelkar, Shriniwas L. J. Chem. Educ. 2000, 77, 387.
Qualitative Analysis |
Microscale Lab
|
Antacids Revisited with Modern Chemical Instruments: GCMS, AAS, and CCT Stanley L. Burden and Christopher J. Petzold
This paper describes a novel experiment that requires students to obtain and interpret data from several analytical techniques to identify the brand name of a commercial antacid. They are required to design a set of experiments utilizing computer controlled titrations (CCT), atomic absorption (AA), gas chromatography-mass spectroscopy (GCMS), and careful quantitative manual titrations using a visual indicator of their choice to determine the brand name of their sample from a list of six to eight choices.
Burden, Stanley L.; Petzold, Christopher J. J. Chem. Educ. 1999, 76, 1544.
Chromatography |
Mass Spectrometry |
Titration / Volumetric Analysis |
Instrumental Methods |
Acids / Bases |
Qualitative Analysis
|
Piltdown Man: Combining the Instruction of Scientific Ethics and Qualitative Analysis John B. Vincent
Pieces of chalk are treated with chromium, manganese, and iron to simulate the treatment used to forge the Piltdown "fossils"; students can use techniques in qualitative analysis schemes for the group III ions to determine whether the samples are "forgeries" and if so which metal ion(s) were used.
Vincent, John B. J. Chem. Educ. 1999, 76, 1501.
Ethics |
Qualitative Analysis
|
Analysis of Soft Drinks Using Nuclear Magnetic Resonance Spectroscopy: A Mentorship Arkim Wilson, Craig Myers, George Crull, Michael Curtis, and Pamela Pasciak Patterson
This mentorship was designed to expose a student to the laboratory routine for a chemist at Bristol Myers Squibb Company (BMS). The student visited BMS, collaborated with BMS scientists, and actually completed a project on site. He was asked to determine the identity of an unknown sample of soft drink retrieved from a fictitious crime scene using NMR spectroscopy.
Wilson, Arkim; Myers, Craig; Crull, George; Curtis, Michael; Pasciak, Pamela M. J. Chem. Educ. 1999, 76, 1414.
Instrumental Methods |
Atomic Properties / Structure |
NMR Spectroscopy |
Qualitative Analysis |
Separation Science |
Student / Career Counseling
|
Spectrophotometric Determination of Thiocyanate in Human Saliva Markku Lahti*, Juhani Vilpo, and Jari Hovinen
Here is described how qualitative and quantitative analysis of human saliva thiocyanate ion can be performed as a part of the laboratory exercise for the determination of chemical equilibrium between Fe+3 and SCN- ions.
Lahti, Markku; Vilpo, Juhani; Hovinen, Jari. J. Chem. Educ. 1999, 76, 1281.
UV-Vis Spectroscopy |
Undergraduate Research |
Medicinal Chemistry |
Qualitative Analysis |
Quantitative Analysis
|
A Fast and Reliable Method for Packing Capillaries for X-ray Powder Diffraction Analysis Walter K. Dean and Brett J. MacIntyre
This note presents an improved method for filling capillary tubes for X-ray powder crystallographic analysis, which avoids the tedium and breakage associated with traditional methods.
Dean, Walter K.; MacIntyre, Brett J. J. Chem. Educ. 1999, 76, 1245.
Qualitative Analysis |
Solid State Chemistry |
Crystals / Crystallography |
Laboratory Equipment / Apparatus |
X-ray Crystallography
|
Qualitative Analysis in the Beginning Organic Laboratory James H. Cooley and Richard Vaughan Williams
We present arguments for the continued inclusion of qualitative analysis in the undergraduate organic laboratory curriculum. We have developed a problem-solving approach to the teaching of these laboratory courses.
Cooley, James H.; Williams, Richard Vaughan. J. Chem. Educ. 1999, 76, 1117.
Learning Theories |
Qualitative Analysis
|
The Systematic Identification of Organic Compounds, 7th Edition (by R. L. Shriner, C. K. F. Hermann, T. C. Morrill, D. Y. Curtin, and R. C. Fuson) David Evans
Qualitative organic chemistry text.
Evans, David. J. Chem. Educ. 1999, 76, 1069.
Qualitative Analysis
|
Service-Learning General Chemistry: Lead Paint Analyses Laya Kesner and Edward M. Eyring
In a service-learning general chemistry class, students disseminate information about this health threat in an older neighborhood. At some of the homes they collect paint samples that they analyze for lead both qualitatively and quantitatively. This service-learning experience generates enthusiasm for general chemistry through the process of working on a "real" problem.
Kesner, Laya; Eyring, Edward M. J. Chem. Educ. 1999, 76, 920.
Toxicology |
Applications of Chemistry |
Qualitative Analysis |
Quantitative Analysis
|
Preparation and Identification of Benzoic Acids and Benzamides: An Organic "Unknown" Lab Douglass F. Taber, Jade D. Nelson, and John P. Northrop
The reaction of an unknown substituted benzene derivative with oxalyl chloride and aluminum chloride gives the acid chloride. Hydrolysis of the acid chloride gives the acid, and reaction of the acid with concentrated aqueous ammonia gives the benzamide. The equivalent weight of the acid can be determined by titration; given this information and the melting points of the acid and the benzamide, it is possible to deduce the structure of the initial unknown.
Taber, Douglass F.; Nelson, Jade D.; Northrop, John P. J. Chem. Educ. 1999, 76, 828.
Qualitative Analysis |
Aromatic Compounds |
Carboxylic Acids
|
Chemical Waste Management for the Conditionally Exempt Small Quantity Generator Steven W. Zimmer
For schools that generate relatively small quantities of waste, an individual can effectively manage the waste program without becoming overly burdened by the EPA regulations required for those generating large quantities of waste, if given the necessary support from the institution.
Zimmer, Steven W. J. Chem. Educ. 1999, 76, 808.
Aqueous Solution Chemistry |
Qualitative Analysis |
Laboratory Management
|
Teaching Statistical Methods Muranaka, Ken
Problems with Dixon's Q-test for testing outlying observations.
Muranaka, Ken J. Chem. Educ. 1999, 76, 469.
Chemometrics |
Qualitative Analysis
|
Is It Real Gold? Harold H. Harris
The oxidation-reduction couples involved in the corrosion of gold alloys and the dissolution of "noble" metals are related to an inquiry to the newspaper columnist, Ann Landers. the origin of several contemporary phrases (touch stone, acid test, Hallmark) are found in the chemistry of gold.
Harris, Harold H. J. Chem. Educ. 1999, 76, 198.
Acids / Bases |
Oxidation / Reduction |
Qualitative Analysis |
Applications of Chemistry
|
Functional Group Analysis Johannes S. Malherbe and Cornelius J. Meyer
Initial questions where all results and observations of the chemical tests relating to the selected functional groups are systematically tabulated help to develop a methodical approach to analyzing problems. The tabulated comparisons can facilitate the student's approach to the classical questions, preventing random attempts with no regard for a process of elimination (if applicable).
Malherbe, Johannes S.; Meyer, Cornelius J. J. Chem. Educ. 1999, 76, 56.
Nonmajor Courses |
Qualitative Analysis |
Learning Theories
|
Chromatography, Absorption, and Fluorescence: A New Instrumental Analysis Experiment on the Measurement of Polycyclic Aromatic Hydrocarbons in Cigarette Smoke Lisa M. Wingen, Jason C. Low, and Barbara J. Finlayson-Pitts
An experiment suitable for an undergraduate junior/senior-level instrumental analysis laboratory which illustrates the principles of high-performance liquid chromatography (HPLC) and its application to the identification and measurement of polycyclic aromatic hydrocarbons (PAH) in tobacco smoke.
Wingen, Lisa M.; Low, Jason C.; Finlayson-Pitts, Barbara J. J. Chem. Educ. 1998, 75, 1599.
Instrumental Methods |
Chromatography |
Qualitative Analysis |
Quantitative Analysis |
Fluorescence Spectroscopy |
Aromatic Compounds
|
Lead Globules Francisco J. Arnáiz and Maria R. Pedrosa
Reaction of plumbate solutions with aluminum. A variety of lead films can be formed depending on the conditions. The method we describe permits obtaining a large lead globule in less than 1 minute.
Arnáiz, Francisco J.; Pedrosa, Maria R. J. Chem. Educ. 1998, 75, 1431.
Qualitative Analysis |
Oxidation / Reduction
|
Infrared Spectroscopy Determination of Lead Binding to Ethylenediaminotetraacetic Acid Alanah Fitch and Simona Dragan
In an attempt to improve a thematic lab sequence based on lead analysis of community derived samples, we have considered infrared spectroscopy as a method of determining the lead bound to ethylenediaminotetraacetic acid (EDTA).
Fitch, Alanah; Dragan, Simona. J. Chem. Educ. 1998, 75, 1018.
IR Spectroscopy |
Qualitative Analysis |
Quantitative Analysis |
Coordination Compounds
|
The Chemical Adventures of Sherlock Holmes: The Baker Street Burning Thomas G. Waddell and Thomas R. Rybolt
A chemical mystery featuring Sherlock Holmes and Dr. Watson.
Thomas G. Waddell and Thomas R. Rybolt. J. Chem. Educ. 1998, 75, 484.
Enrichment / Review Materials |
Forensic Chemistry |
Qualitative Analysis |
Oxidation / Reduction |
Alcohols |
Dyes / Pigments
|
Incorporating Organic Name Reactions and Minimizing Qualitative Analysis in an Unknown Identification Experiment Claire Castro and William Karney
The authors have developed a new type of unknown identification experiment for the introductory organic chemistry laboratory. The unknown sample the student is provided with is the product of an organic name reaction. The student is only informed of the starting material and conditions used in the compound's synthesis, and must then: (1) deduce the compound's structure, (2) determine the name reaction and corresponding mechanism that yields the compound, and (3) present his/her results to the class.
Claire Castro and William Karney. J. Chem. Educ. 1998, 75, 472.
IR Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis |
Nomenclature / Units / Symbols |
Reactions |
Mechanisms of Reactions |
Molecular Properties / Structure
|
Complexometric Titrations: Competition of Complexing Agents in the Determination of Water Hardness with EDTA M. Cecilia Yappert and Donald B. DuPre
The competition of complexing agents for the same metal ion and the formation of colored metal-ion complexes is demonstrated with the use of an overhead projector. This demonstration can be used to emphasize both the relevance of the relative values of formation constants in the complexation of metal cations and the applicability of complexometric titrations in quantitative chemical analysis.
Yappert, M. Cecilia; DuPre, Donald B. J. Chem. Educ. 1997, 74, 1422.
Equilibrium |
Coordination Compounds |
Qualitative Analysis |
Quantitative Analysis |
Titration / Volumetric Analysis |
Aqueous Solution Chemistry |
Water / Water Chemistry |
Metals
|
A Mini-Qualitative Carbohydrate Analysis Session Johannes S. Malherbe and Cornelius J. Meyer
A qualitative analysis scheme for a limited selection of carbohydrates (i.e. some mono- and disaccharides) using a flowchart approach. Procedures, for the preparation of all reagents, the tests and a brief description of the results are detailed.
Malherbe, Johannes S.; Meyer, Cornelius J. J. Chem. Educ. 1997, 74, 1304.
Carbohydrates |
Qualitative Analysis |
Nonmajor Courses
|
Integration of GC/MS Instrumentation into the Undergraduate Laboratory: Separation and Identification of Fatty Acids in Commercial Fats and Oils Judith F. Rubinson and Jennifer Neyer-Hilvert
Rubinson, Judith F.; Neyer-Hilvert, Jennifer. J. Chem. Educ. 1997, 74, 1106.
Instrumental Methods |
Chromatography |
Mass Spectrometry |
Food Science |
Gas Chromatography |
Separation Science |
Qualitative Analysis |
Quantitative Analysis |
Fatty Acids
|
Reduction of Chlorinated Dibenzodioxin and Dibenzofuran Formation in the Beilstein Test Theodore D. Goldfarb and Sabine G. Fontana
In this paper we describe the results of studies designed to increase the safety of the Beilstein test by minimizing the production of these toxins. Simple adjustments in Bunsen burner temperature and the length of time the copper test loop is exposed to the flame were found to be ineffective.
Goldfarb, Theodore D.; Fontana, Sabine G. . J. Chem. Educ. 1997, 74, 838.
Qualitative Analysis |
Aromatic Compounds
|
The Use of PTFE Membranes for the Construction of Semimicroscale Gas Reactors Schallies, Michale; Schnelle, Hans-Otto; Kunze, Klaus
The membranes are employed to separate reaction compartments, where gas-evolving reactions take place, from solutions of reagents needed for qualitative or quantitative determinations of the gases. The PTFE membranes allow free flow of gases while they prevent the passage of water.
Schallies, Michale; Schnelle, Hans-Otto; Kunze, Klaus J. Chem. Educ. 1996, 73, A128.
Gases |
Qualitative Analysis |
Quantitative Analysis |
Laboratory Equipment / Apparatus |
Microscale Lab
|
Effects of Solution Physical Properties on Copper and Chromium Signals in Flame Atomic Absorption Spectrometry Fàbio R. P. Rocha, Joaquim A. Nòbrega
Instrumental techniques, such as flame atomic absorption spectrometry (FAAS), are frequently used in chemical analysis. Independently of the technique used, the chemical principles must be considered to assure that the analytical results are correct.
Rocha, Fàbio R. P.; Nòbrega , Joaquim A. J. Chem. Educ. 1996, 73, 982.
Physical Properties |
Atomic Spectroscopy |
Qualitative Analysis |
Solutions / Solvents |
Instrumental Methods
|
A Demonstration of Crystal-Field Effects in Octahedral Complexes Edward Koubek and Mark Elert
The simple demonstration described here can perhaps enhance the presentation of crystal field splitting and magnetic properties in octahedral complexes.
Koubek, Edward; Elert, Mark. J. Chem. Educ. 1996, 73, 947.
Crystal Field / Ligand Field Theory |
Spectroscopy |
Qualitative Analysis |
Magnetic Properties |
Coordination Compounds
|
Home-Study Microlabs Dietmar Kennepohl
This article presents the use of microscaled chemistry experiments for individual home study and how it can be incorporated into a course with traditional laboratory work.
Kennepohl, Dietmar. J. Chem. Educ. 1996, 73, 938.
Microscale Lab |
Solutions / Solvents |
Calorimetry / Thermochemistry |
Qualitative Analysis |
Precipitation / Solubility
|
A New Photochemistry Experiment, A Simple 2+2 Photocycloaddition that Poses an Interesting NMR Problem John T. Magner, Matthias Selke, Arlene A. Russell, Orville L. Chapman
The cycloaddition of -nitrostyrene to 2,3-dimethyl-1,3-butadiene provides an extremely clean example of 2 + 2 cycloaddition. This laboratory exercise combines theory, technique, spectroscopy, and data interpretation.
J. Chem. Educ. 1996, 73, 854.
Photochemistry |
NMR Spectroscopy |
Qualitative Analysis |
Instrumental Methods |
Addition Reactions |
Mechanisms of Reactions
|
First Day in Organic Lab Christine K. F. Hermann
This experiment is designed to introduce students to the techniques of reflux, distillation, gas chromatography, and the determination of boiling point and melting point during one lab period.
J. Chem. Educ. 1996, 73, 852.
Separation Science |
Gas Chromatography |
Physical Properties |
Qualitative Analysis |
Instrumental Methods
|
The Use of a "Qual" Centrifuge for Greatly Simplifying and Speeding the Study of Milk Quentin R. Petersen
Laboratory study of the constituents of milk is almost always slowed by difficult separation of relatively large amounts of curd and whey by filtration. In the two-and-one-half hour experiment described, only 5 mL of skim milk is used and the curd is separated from the whey by using a simple "qual" centrifuge.
J. Chem. Educ. 1996, 73, 848.
Proteins / Peptides |
Carbohydrates |
Qualitative Analysis
|
Determination of Free-Energy Relationships Using Gas Chromatography Nicholas H. Snow
By performing a few straightforward analyses on a gas chromatograph, it is possible to calculate the free energy, enthalpy, and entropy changes that occur when a compound transfers between the mobile and stationary phases.
Snow, Nicholas H. J. Chem. Educ. 1996, 73, 592.
Gas Chromatography |
Thermodynamics |
Laboratory Computing / Interfacing |
Qualitative Analysis
|
GC-MS and GC-FTIR Characterization of Products: From Classical Freshman and Sophomore Syntheses D. S. Amenta, T. C. Devore, T. N. Gallaher, C. M. Zook, and J. A. Mosbo
The GC separation of ferrocene, acetylferrocene, and diacetylferrocene is accomplished in less than ten minutes. In addition to the operation of the instrument, the students are introduced to the interpretation of mass spectra and library aided spectral identification.
D. S. Amenta, T. C. Devore, T. N. Gallaher, C. M. Zook, and J. A. Mosbo. J. Chem. Educ. 1996, 73, 572.
Instrumental Methods |
Gas Chromatography |
IR Spectroscopy |
Qualitative Analysis
|
A Pedagogical Approach to Qualitative Organic Analysis: Simulating the Integration of Wet Tests, Spectroscopy, and Common Sense Adrian J. Blackman
185. Students, by using a computer simulation, are able to discover and rehearse the strategy of identifying an organic unknown in a situation free from the additional uncertainties of performing unfamiliar laboratory work and then relying on the results.
Blackman, Adrian J. J. Chem. Educ. 1996, 73, 434.
Spectroscopy |
Qualitative Analysis
|
Methylene-bis-amide (MBA) Derivatives for Characterization of Nitriles Edgar F. Kiefer and Kenn M. Takauye
Nitriles (RCN) react with formaldehyde in 80% H2SO4 to form solid derivatives (RCONH)2CH2 useful for characterization. Melting points are tabulated for derivatives of 18 common nitriles.
Kiefer, Edgar F.; Takauye, Kenn M. J. Chem. Educ. 1996, 73, 190.
Qualitative Analysis |
Mechanisms of Reactions
|
Capillary Gas Chromatography Injection: An Exercise for Students of Instrumental Analysis Philip J. Marriot and Peter D. Carpenter
A laboratory exercise is described which illustrates the operation of a split/splitless capillary gas chromatography injection system.
Marriott, Philip J.; Carpenter, Peter D. J. Chem. Educ. 1996, 73, 96.
Gas Chromatography |
Qualitative Analysis |
Quantitative Analysis |
Instrumental Methods
|
An Efficient Microscale Procedure for the Preparation of 3,5-Dinitrobenzoates Smith, Richard F.; Cristalli, Gaetano M.
Efficient and simple microscale preparation of 3,5-dinitrobenzoates.
Smith, Richard F.; Cristalli, Gaetano M. J. Chem. Educ. 1995, 72, A164.
Synthesis |
Qualitative Analysis |
Laboratory Management |
Microscale Lab |
Aromatic Compounds |
Esters
|
An Efficient Microscale Procedure for the Preparation of 3,5-Dinitrobenzoates Richard F. Smith and Gaetano M. Cristalli
A laboratory to introduce the concept and technique of mass spectroscopy to introductory organic students; sample data and analysis included.
Smith, Richard F.; Cristalli, Gaetano M. J. Chem. Educ. 1995, 72, A160.
Mass Spectrometry |
Gas Chromatography |
Aldehydes / Ketones |
Instrumental Methods |
Qualitative Analysis |
Microscale Lab
|
Organic Qualitative Analysis at the Microscale Level Craig, Rhoda E. R.; Kaufman, Kurt K.
Project requiring students to identify pure unknowns and the components of mixtures using a variety of chromatography and spectrometry techniques.
Craig, Rhoda E. R.; Kaufman, Kurt K. J. Chem. Educ. 1995, 72, A102.
NMR Spectroscopy |
IR Spectroscopy |
Chromatography |
Separation Science |
Qualitative Analysis |
Acids / Bases
|
Undergraduate Organic Chemistry Students Use Printed and Electronic Handbooks to Identify Unknowns Grace Baysinger
Synopsis of a program allowing sophomore organic students to supplement their laboratory work with extensive citations to support their observations; includes a summary of all reference materials used, a bibliography of relevant texts, printed and electronic references, and results of a student survey.
Baysinger, Grace. J. Chem. Educ. 1995, 72, 1107.
Qualitative Analysis
|
Thin-Layer Chromatography of Analgesics--An Update John W. Elder
Procedure for identifying ibuprofen, naproxen sodium, acetominaphen, aspirin, and caffeine on commercial chromatography sheets containing a fluorescent indicator.
Elder, John W. J. Chem. Educ. 1995, 72, 1049.
Chromatography |
Separation Science |
Drugs / Pharmaceuticals |
Thin Layer Chromatography |
Qualitative Analysis |
Aromatic Compounds
|
Using Copper sulfate as a Classification Test for Amino Acids and Amines Christine K. F. Hermann
Using copper sulfate to test for amino acids and amines that do not dissolve well in water.
Hermann, Christine K. F. J. Chem. Educ. 1995, 72, 940.
Amino Acids |
Laboratory Management |
Amines / Ammonium Compounds |
Qualitative Analysis
|
An Alternative Methodology for General Chemistry Laboratories: Chemical Equivalent of a Metal Carlos M. Bonatti, José L. Zurita, and Horácio N. Sólimo
Procedure in which students are asked to identify an unknown metal that can react with mineral acids to evolve hydrogen where the students are required to obtain bibliographic information and decide on some aspects of the experimental work.
Bonatti, Carlos M.; Zurita, Jose L.; Sclimo, Horacio N. J. Chem. Educ. 1995, 72, 834.
Metals |
Qualitative Analysis
|
A Laboratory Experiment Illustrating the Properties and Bioavailability of Iron Kimbrough, Doris R.; Martinez, Noelia; Stolfus, Stephanie
A qualitative laboratory experiment to illustrate the properties and behavior of iron and its complexes to the absorption and bioavailability of iron in human systems.
Kimbrough, Doris R.; Martinez, Noelia; Stolfus, Stephanie J. Chem. Educ. 1995, 72, 558.
Metals |
Qualitative Analysis
|
A Compromise Method for Dispensing Some Strong Acids for Qualitative Analysis Classes. Ruekberg, Ben.
Apparatus and procedure for dispensing strong acids to students.
Ruekberg, Ben. J. Chem. Educ. 1995, 72, 450.
Qualitative Analysis |
Laboratory Equipment / Apparatus |
Laboratory Management
|
The Identification of Aspirin-Free Bayer Products: An Alternative to the Classical TLC of Analgesics (1) Cawley, John J.
Procedure for identifying several non-aspirin analgesics using using thin layer chromatography and an ultraviolet lamp.
Cawley, John J. J. Chem. Educ. 1995, 72, 272.
Drugs / Pharmaceuticals |
Chromatography |
Separation Science |
Thin Layer Chromatography |
Qualitative Analysis
|
Qualitative and Instrumental Analysis of Environmentally Significant Elements (Chasteen, Thomas G.) Bath, Donald
A supplementary lab text.
Bath, Donald J. Chem. Educ. 1994, 71, A261.
Instrumental Methods |
Qualitative Analysis
|
A Microscale Purification and Qualitative Spectroscopic Examination of C60 (Buckminsterfullerene): An Experiment Suitable for Undergraduate Organic Laboratory Courses Marecek, James F.; Kuduk, Scott D.
A simple and inexpensive purification procedure for isolating C60.
Marecek, James F.; Kuduk, Scott D. J. Chem. Educ. 1994, 71, A141.
Microscale Lab |
Spectroscopy |
Qualitative Analysis |
Separation Science
|
A Mini-Qualitative Organic Analysis Session Labuschagne, A. Johan H.; Malherbe, Johannes S.; Meyer, Cornelius J.
The article describes a tested mini-scheme that works for selected unknowns and allows an instructor to introduce non-major students to a variety of functional group tests in a single laboratory session.
Labuschagne, A. Johan H.; Malherbe, Johannes S.; Meyer, Cornelius J. J. Chem. Educ. 1994, 71, 1088.
Qualitative Analysis |
Solutions / Solvents |
Nonmajor Courses
|
A Qualitative Experiment for Organic Chemistry Lab Hermann, Christine K. F.
This experiment was introduced near the end of second semester. The students were told that the unknowns were either an alcohol, a carboxylic acid, an amine, an aldehyde, or a ketone. The identifications were based on melting points or boiling points, the IR and NMR spectra, and a set of four classification tests.
Hermann, Christine K. F. J. Chem. Educ. 1994, 71, 991.
Qualitative Analysis |
IR Spectroscopy |
NMR Spectroscopy
|
A Kinetic Experiment To Determine Traces of Iron(lll) and Iron(ll): Using the "Pyrrole Blue" Reaction Lampard, M.
The semi-quantitative determination of traces of iron(II) and iron(III) over a practical range of 1-10 micrograms.
Lampard, M. J. Chem. Educ. 1994, 71, 352.
Kinetics |
Qualitative Analysis |
Dyes / Pigments
|
Microscale qualitative organic analysis Goller, Edwin J.; Miller, John H.
Students gain critical thinking skills in an organic chemistry course by selecting their own chemical tests.
Goller, Edwin J.; Miller, John H. J. Chem. Educ. 1993, 70, A159.
Qualitative Analysis |
Spectroscopy |
Fourier Transform Techniques |
NMR Spectroscopy |
Gas Chromatography |
Mass Spectrometry |
Microscale Lab
|
How to make the N-bottle problem more rigorous Ryan, Dennis P.; Strothkamp, Ronald E.
Suggestions include: use more bottles, include cations from more groups, require balanced net ionic equations, require a formal report, and more.
Ryan, Dennis P.; Strothkamp, Ronald E. J. Chem. Educ. 1993, 70, 850.
Descriptive Chemistry |
Qualitative Analysis
|
Identifying polymers through combustion and density Blumberg, Avrom A.
Using analytical chemistry class experiences as a way to not only quantitatively and qualitatively analyze substances, but also to gain practical experience with characteristic chemical reactions of those substances.
Blumberg, Avrom A. J. Chem. Educ. 1993, 70, 399.
Physical Properties |
Qualitative Analysis |
Polymerization |
Quantitative Analysis
|
Whether organic qual will wither? Zieger, Herman E.
Author argues the important pedagogic purposes of organic qualitative analysis.
Zieger, Herman E. J. Chem. Educ. 1993, 70, 230.
Spectroscopy |
Qualitative Analysis |
IR Spectroscopy |
NMR Spectroscopy
|
Detection of Common Chlorinated Pesticides in Water by Gas Chromatography Neuzil, E. F.; Stone, D. J.
This experiment is easy and is met with student interest near the end of a full-year laboratory as an example of micro- analysis used in a qualitative and somewhat quantitative determination.
Neuzil, E. F.; Stone, D. J. J. Chem. Educ. 1993, 70, 167.
Gas Chromatography |
Green Chemistry |
Qualitative Analysis |
Quantitative Analysis |
Applications of Chemistry
|
The chemical adventures of Sherlock Holmes: The case of the screaming stepfather Waddell, Thomas G.; Rybolt, Thomas R.
A chemical mystery featuring Sherlock Holmes and Dr. Watson.
Waddell, Thomas G.; Rybolt, Thomas R. J. Chem. Educ. 1992, 69, 999.
Enrichment / Review Materials |
Qualitative Analysis |
Toxicology
|
An hydrogen sulfide free analytical technique for cation analysis: The statistical approach Gaggero, Fernando Labandera; Luaces, Victor Martinez
In this analysis the study of each cation was carried out independently without taking into account the other cations present in the solutions.
Gaggero, Fernando Labandera; Luaces, Victor Martinez J. Chem. Educ. 1992, 69, 934.
Chemometrics |
Qualitative Analysis |
Precipitation / Solubility
|
Cautionary note regarding the phenol color test by ferric chloride in acidic solution Hasegawa, Tadashi; Usui, Toyokazu
Effect of acids on the phenol color test by ferric chloride.
Hasegawa, Tadashi; Usui, Toyokazu J. Chem. Educ. 1992, 69, 840.
Phenols |
Qualitative Analysis |
Acids / Bases
|
Keeping the "un" in unknowns in qualitative identification exercises using FTIR. Chauvin, Judy V.; Field, Jack E.
Using hexachloro-1,3-butadiene as the diluent for FTIR unknowns.
Chauvin, Judy V.; Field, Jack E. J. Chem. Educ. 1992, 69, 661.
IR Spectroscopy |
Fourier Transform Techniques |
Qualitative Analysis
|
Schiff base puzzle project. Todd, David.
Students pick an unknown substituted aniline and a substituted benzaldehyde, produces the corresponding Schiff base from them, and compares its melting point to those of 25 possible Schiff bases (their structures and melting points being given).
Todd, David. J. Chem. Educ. 1992, 69, 584.
Qualitative Analysis |
Aldehydes / Ketones |
Amines / Ammonium Compounds
|
W(h)ither organic qual? Zubrick, J. W.
If our students have already learned the times table, what is the point of denying the use of calculators.
Zubrick, J. W. J. Chem. Educ. 1992, 69, 387.
Qualitative Analysis |
Laboratory Computing / Interfacing
|
An introduction to NMR titration for studying rapid reversible complexation Macomber, Roger S.
Nuclear magnetic resonance spectrospcopy is one of the most useful techniques available to chemists for the investigation of dynamic molecular processes.
Macomber, Roger S. J. Chem. Educ. 1992, 69, 375.
NMR Spectroscopy |
Titration / Volumetric Analysis |
Solutions / Solvents |
Qualitative Analysis
|
Textile fiber identification: An organic-polymer laboratory Flachskam, Robert L., Jr.; Flachskam, Nancy W.
A laboratory that introduces student to an important application of polymers-textile fibers.
Flachskam, Robert L., Jr.; Flachskam, Nancy W. J. Chem. Educ. 1991, 68, 1044.
Natural Products |
Plant Chemistry |
Applications of Chemistry |
Qualitative Analysis |
Physical Properties |
Materials Science
|
A study of the Lucas test Kjonaas, Richard A.; Riedford, Bernie A.
These authors performed the Lucas test on a number of alcohols and discuss the problems associated with the Lucas test's detection of secondary alcohols.
Kjonaas, Richard A.; Riedford, Bernie A. J. Chem. Educ. 1991, 68, 704.
Alcohols |
Qualitative Analysis
|
Transition metal complexes with 1,4,7-trithiacyclononane: A laboratory experiment in coordination chemistry Grant, Gregory J.; Mauldin, Penny L.; Setzer, William N.
A laboratory experiment in coordination chemistry that deals with the synthesis of four transition metal complexes containing a crown thioether ligand.
Grant, Gregory J.; Mauldin, Penny L.; Setzer, William N. J. Chem. Educ. 1991, 68, 605.
Coordination Compounds |
Metals |
UV-Vis Spectroscopy |
Fourier Transform Techniques |
IR Spectroscopy |
Magnetic Properties |
Qualitative Analysis
|
An internal comparison of the intermolecular forces of common organic functional groups: A thin-layer chromatography experiment Beauvais, Robert; Holman, R. W.
Due to the latest trends in organic chemistry textbook content sequences, it has become desirable to develop an experiment that is rapid, simple, and general, that would compare and contrast the various functional group classes of organic molecules in terms of their relative polarities, dipole moments, and intermolecular forces of attraction.
Beauvais, Robert; Holman, R. W. J. Chem. Educ. 1991, 68, 428.
Alkanes / Cycloalkanes |
Alkenes |
Alcohols |
Carboxylic Acids |
Aldehydes / Ketones |
Esters |
Qualitative Analysis |
Thin Layer Chromatography |
Noncovalent Interactions |
Molecular Properties / Structure
|
Preparation and characterization of two nickel(II) complexes: An inorganic chemistry experiment Eagle, Cassandra T.; Walmsley, Frank
An inorganic chemistry experiment developed on coordination compounds that provides an opportunity to piece together several sets of data to determine significant information about the structures of compounds.
Eagle, Cassandra T.; Walmsley, Frank J. Chem. Educ. 1991, 68, 336.
IR Spectroscopy |
Qualitative Analysis |
Magnetic Properties |
Coordination Compounds
|
Color reactions and thin-layer chromatography of amino acids: An undergraduate organic chemistry experiment for students in the allied health sciences Hurst, Michael O.; Cobb, D. Keith
Students identify unknowns by determining Rf's and applying color reagents to the chromatograms.
Hurst, Michael O.; Cobb, D. Keith J. Chem. Educ. 1990, 67, 978.
Thin Layer Chromatography |
Amino Acids |
Qualitative Analysis
|
Identification of unknowns by melting point and thin-layer chromatography in combination Levine, Samuel G.
Identification from among 12 unknowns by melting point and thin-layer chromatography.
Levine, Samuel G. J. Chem. Educ. 1990, 67, 972.
Physical Properties |
Thin Layer Chromatography |
Qualitative Analysis
|
Qualitative analysis of alloys by electrography Gaggero, Fernando Labandera; Rodriguez, Alvaro Mombru
Electrolytes and color reagents used for the identification of 25 metallic ions.
Gaggero, Fernando Labandera; Rodriguez, Alvaro Mombru J. Chem. Educ. 1990, 67, 706.
Qualitative Analysis |
Metals
|
A kinetic experiment for determination of traces of Cu2+ Lampard, M.
Adaptation of a spot technique used to identify trace amounts of cupric ion by its catalytic effect of the ferric ion / thiosulfate reaction.
Lampard, M. J. Chem. Educ. 1990, 67, 601.
Qualitative Analysis |
Catalysis |
Kinetics
|
Qualitative amino acid analysis of small peptides by GC/MS Mabbott, Gary A.
Besides being appealing to students the exercise described here gives them experiences in derivation methods that are often necessary in order to make nonvolatile samples amenable to gas chromatography separation.
Mabbott, Gary A. J. Chem. Educ. 1990, 67, 441.
Amino Acids |
Qualitative Analysis |
Gas Chromatography |
Mass Spectrometry |
Instrumental Methods
|
Hydroboration for the large organic laboratory Pickering, Miles
This paper reports an experiment in hydroboration without large hood space requirements, without special glassware requirements, and without inert atmospheric precautions.
Pickering, Miles J. Chem. Educ. 1990, 67, 436.
Oxidation / Reduction |
Alkenes |
Alcohols |
Qualitative Analysis
|
Thioacetamide in qualitative analysis Lumme, Paavo O.
The author points out that alternative schemes for qualitative inorganic analysis have been developed, in which neither hydrogen sulfide nor thioacetamide are needed.
Lumme, Paavo O. J. Chem. Educ. 1990, 67, 184.
Qualitative Analysis
|
An easy and low-cost technique for the qualitative analysis of silicates Vitale, Daniel
This technique has proved easier for students to perform, analytical results have improved, and this technique has greater sensitivity than the previous one.
Vitale, Daniel J. Chem. Educ. 1990, 67, 64.
Qualitative Analysis
|
An inexpensive Schoninger flask Sowa, John R.
Design and application of an inexpensive Schoninger flask.
Sowa, John R. J. Chem. Educ. 1989, 66, 974.
Laboratory Equipment / Apparatus |
Qualitative Analysis
|
A suggestion for a beginning organic chemistry laboratory Sowa, John R.
A miniexperiment in qualitative analysis for early in the first-year organic laboratory to give students a greater appreciation for the introduction to functional groups received in the lecture.
Sowa, John R. J. Chem. Educ. 1989, 66, 938.
Qualitative Analysis
|
Suggestions for the modification of assessment procedures in analytical chemistry courses: The statistical approach Luaces, Victor Martinez; Gaggero, Fernando Labandera
Determines by means of statistical techniques whether samples of unknown composition provided to students for identification as part of a test of practical ability and theoretical comprehension present significant differences in their degree of difficulty.
Luaces, Victor Martinez; Gaggero, Fernando Labandera J. Chem. Educ. 1989, 66, 843.
Qualitative Analysis
|
Qualitative analysis and the binomial expansion McCullough, Thomas, C. S. C.
How many all-different solutions can be prepared from a limited number of ions or compounds when preparing qualitative unknown mixtures?
McCullough, Thomas, C. S. C. J. Chem. Educ. 1989, 66, 490.
Qualitative Analysis |
Laboratory Management
|
Qualitative versus quantitative results: An experimental introduction to data interpretation Johnson, Eric R.; Alter, Paula
This paper describes an experiment in which the student can ascertain the meaning of a negative result from a quantitative test on the same sample.
Johnson, Eric R.; Alter, Paula J. Chem. Educ. 1989, 66, 440.
Qualitative Analysis |
Quantitative Analysis |
Carbohydrates
|
Evaluation of EMIT as a qualitative screening test for marijuana use Rehnstrom, Amy L.; Briner, Robert C.; Frazier, Christina L.
The Enzyme Multiplied Immunoassay Technique (EMIT) can be used to detect qualitatively the presence of a particular substance in urine, serum, or plasma. In the crime laboratory, it is used to screen for drugs associated with illegal use.
Rehnstrom, Amy L.; Briner, Robert C.; Frazier, Christina L. J. Chem. Educ. 1989, 66, 346.
Forensic Chemistry |
Qualitative Analysis |
Plant Chemistry
|
Trifluoroacetylation of unknown alcohols: An integrated microscale organic experiment using spectroscopic methods Piers, Kenneth; Hsung, Richard
The authors have found that trifluoroacetylation of unknown alcohols is a fast, clean, easily performed microscale experiment that integrates a number of aspects of laboratory work, viz. synthesis, isolation, characterization, spectroscopic measurement, and interpretation, and unknown identification.
Piers, Kenneth; Hsung, Richard J. Chem. Educ. 1989, 66, 90.
Alcohols |
Microscale Lab |
Qualitative Analysis |
NMR Spectroscopy |
IR Spectroscopy
|
Qualitative Chemical Analysis (Harris, Daniel C.) Wolsey, Wayne C.
Analytical chemistry text.
Wolsey, Wayne C. J. Chem. Educ. 1987, 64, A156.
Qualitative Analysis
|
Analysis of aspartame and its hydrolysis products by thin-layer chromatography Conklin, Alfred R.
Separating and identifying the amino acids found in aspartame.
Conklin, Alfred R. J. Chem. Educ. 1987, 64, 1065.
Thin Layer Chromatography |
Amino Acids |
Food Science |
Separation Science |
Qualitative Analysis
|
A problem involving organic qualitative analysis Silvert, D. J.
Five different organic compounds are to be identified from the result of three simple qualitative tests on each unknown (dichromate, DNPH, and iodoform tests).
Silvert, D. J. J. Chem. Educ. 1987, 64, 971.
Qualitative Analysis |
Alcohols |
Aldehydes / Ketones
|
Improved performance in qualitative analysis from incorporating some microscale techniques into a traditional organic laboratory program Hammond, Christina Noring; Tremelling, Michael J.
Three synthesis experiments in second semester organic that introduce students to microscale techniques in qualitative analysis.
Hammond, Christina Noring; Tremelling, Michael J. J. Chem. Educ. 1987, 64, 440.
Qualitative Analysis |
Microscale Lab |
Synthesis
|
A safe, convenient method of generating bromine for qualitative analysis Slayden, Suzauee W.; Do, Thuy H.; Smiley, Kimberly Y.; Nelson, Donna J.
A safe, convenient method of generating bromine used as a qualitative test for unsaturation, active methylene groups, phenols, and amines.
Slayden, Suzauee W.; Do, Thuy H.; Smiley, Kimberly Y.; Nelson, Donna J. J. Chem. Educ. 1987, 64, 368.
Qualitative Analysis |
Alkenes |
Phenols |
Amines / Ammonium Compounds |
Laboratory Management
|
Computer program for allocation of organic qualitative analysis unknowns Pontius, Ann L.; Kurz, Michael E.
81. Bits and pieces, 33. A computer program written in IBM BASICA to generate a random group of unknowns for each student.
Pontius, Ann L.; Kurz, Michael E. J. Chem. Educ. 1987, 64, 239.
Qualitative Analysis |
Laboratory Management
|
Tollens's test, fulminating silver, and silver fulminate Jenkins, Ian D.
Preparation, application, and misinformation regarding Tollens's test for aldehydes and reducing sugars.
Jenkins, Ian D. J. Chem. Educ. 1987, 64, 164.
Aldehydes / Ketones |
Carbohydrates |
Qualitative Analysis |
Laboratory Management
|
Synthesis and evaluation of the sex pheromone of the bagworm moth Schwarz, Meyer; Klun, J. A.
Several possible student-oriented experiments at different educational levels can look into the interesting chemistry involved in a naturally occurring optically active pheromone.
Schwarz, Meyer; Klun, J. A. J. Chem. Educ. 1986, 63, 1014.
Undergraduate Research |
Natural Products |
Synthesis |
Qualitative Analysis |
Chirality / Optical Activity
|
Comparison of chemical oxidation of alkanes, alkenes, and alcohols on the overhead projector Kolb, Kenneth E.
This overhead projector demonstration utilizes two classical oxidants, permanganates and dichromate, to distinguish between alkanes, alkenes, and primary, secondary, and tertiary alcohols.
Kolb, Kenneth E. J. Chem. Educ. 1986, 63, 977.
Alcohols |
Alkanes / Cycloalkanes |
Alkenes |
Oxidation / Reduction |
Qualitative Analysis
|
Characterization of the unusual product from the reaction between cobalt (II) chloride, ethane-1,2-diamine, and hydrochloric acid: An undergraduate project involving an unknown metal complex Curtis, Neil F.; Hay, Robert W.; House, Donald A.; Searle, Graeme B.
The authors describe an "unknown metal" experiment involving the product from the reaction between cobalt (II) chloride, ethane 1,2 diamine (en) and concentrated hydrochloric acid.
Curtis, Neil F.; Hay, Robert W.; House, Donald A.; Searle, Graeme B. J. Chem. Educ. 1986, 63, 899.
Metals |
Coordination Compounds |
Qualitative Analysis
|
A quick test for the highly colored ions of the aluminum-nickel group Grenda, Stanley C.
This paper intends to present a technique that eliminates errors in the analysis of the nickel subgroup cations.
Grenda, Stanley C. J. Chem. Educ. 1986, 63, 720.
Qualitative Analysis |
Coordination Compounds
|
Extended logic problems in qualitative analysis Feldman, Martin R.
An interesting variation of a qualitative analysis problem is one that involves nonchemical as well as chemical data. Such problems are ideal for a take-home situation.
Feldman, Martin R. J. Chem. Educ. 1986, 63, 606.
Qualitative Analysis |
Quantitative Analysis
|
Number of oxidations relative to methylene: A convenient method of recognizing and quantifying organic oxidation-reduction Kjonaas, Richard A.
This paper describes the use of a type of molecular oxidation number called "Number of oxidations relative to methylene".
Kjonaas, Richard A. J. Chem. Educ. 1986, 63, 311.
Oxidation / Reduction |
Qualitative Analysis |
Alkenes
|
Rapid identification of thermoplastic polymers Cloutier, Helene; Prud'homme, Robert E.
Procedures for the identification of unknown polymer samples, particularly through their solubilities in organic solvents.
Cloutier, Helene; Prud'homme, Robert E. J. Chem. Educ. 1985, 62, 815.
Qualitative Analysis |
Precipitation / Solubility
|
Microscale group test for carbonyl compounds Horak, V.; Klein, R. F. X.
Rf values for separating various carbonyl compounds using thin layer chromatography.
Horak, V.; Klein, R. F. X. J. Chem. Educ. 1985, 62, 806.
Qualitative Analysis |
Microscale Lab |
Separation Science
|
Use of laboratory-supplied natural gas in breakthrough phenomena Eiceman, G. A.; Davani, B.; Gardea-Torresdey , J.
Discussion of breakthrough phenomenon and an experiment to identify the organic compounds present in natural gas through gas chromatography.
Eiceman, G. A.; Davani, B.; Gardea-Torresdey , J. J. Chem. Educ. 1985, 62, 614.
Gases |
Qualitative Analysis |
Gas Chromatography
|
Lead in hair and in red wine by potentiometric stripping analysis: The university students' design Josephsen, Jens
Determining the lead content of hair and red wine using potentiometric stripping analysis.
Josephsen, Jens J. Chem. Educ. 1985, 62, 532.
Qualitative Analysis |
Electrochemistry |
Undergraduate Research
|
Using a computer database - An "experiment" for the organic and forensic laboratories Umland, Jean B.
From the infrared spectrum of an unknown compound, students use an Infrared Search System to get a list of possible compounds.
Umland, Jean B. J. Chem. Educ. 1985, 62, 500.
Forensic Chemistry |
IR Spectroscopy |
Qualitative Analysis
|
Detection of chromium in presence of iron and manganese Werner, Wolfgang
Procedure for the detection of chromium in the presence of iron and manganese.
Werner, Wolfgang J. Chem. Educ. 1985, 62, 349.
Qualitative Analysis
|
Acid rain analysis by standard addition titration Ophardt, Charles E.
A simple standard addition titration method for determining the acidity of a rain or snow sample.
Ophardt, Charles E. J. Chem. Educ. 1985, 62, 257.
Titration / Volumetric Analysis |
Atmospheric Chemistry |
Acids / Bases |
Qualitative Analysis
|
Qualitative analysis of some transition metals Kilner, Cary
Students are asked to determine which test or or sequence of tests unambiguously identifies each of several cations (iron, nickel, cobalt, and copper) and to use their results to identify several unknowns.
Kilner, Cary J. Chem. Educ. 1985, 62, 80.
Qualitative Analysis |
Transition Elements |
Metals
|
The subjection of glutaraldehyde to the Fehling test and to the corrected Benedict test Hill, William D., Jr.
The molecular and ionic redox equations with respect to the Fehling and Benedict tests (corrected with respect to glutaraldehyde).
Hill, William D., Jr. J. Chem. Educ. 1984, 61, 1085.
Qualitative Analysis |
Aldehydes / Ketones
|
Quantitative analysis of a mixture by NMR spectroscopy Wallace, Tim
Adding a measured quantity of an inert, easily removed reference compound with a simple NMR signal that does not overlap with the mixture's signal can provide the basis for an instructive experiment.
Wallace, Tim J. Chem. Educ. 1984, 61, 1074.
Qualitative Analysis |
NMR Spectroscopy |
Instrumental Methods
|
Qualitative identification of potassium ions using didymium glasses Wood, William F.
Students using the didymium glasses of glass blowers have no trouble determining the presence or absence of potassium in flame tests when their unknown contains sodium.
Wood, William F. J. Chem. Educ. 1984, 61, 1024.
Qualitative Analysis |
Atomic Properties / Structure |
Atomic Spectroscopy
|
A practical experiment for determining a pervasive, persistent pollutant Anderson, C. P.; Saner, W. A.
Spectral identification by means of infrareds spectroscopy of the PCBs recovered from a TLC plate is enhanced due to the concentrating effect of a commercial sample-recovery system.
Anderson, C. P.; Saner, W. A. J. Chem. Educ. 1984, 61, 738.
IR Spectroscopy |
Thin Layer Chromatography |
Separation Science |
Qualitative Analysis
|
Commercial organic products and the organic identification course Goeckner, Norbert A.
Examples of commercial organic products that have been assigned as unknowns.
Goeckner, Norbert A. J. Chem. Educ. 1984, 61, 680.
Consumer Chemistry |
Qualitative Analysis
|
Identification of copper(II) complexes in aqueous solution by electron spin resonance: An undergraduate coordination chemistry experiment Micera, G.; Deiana, S.; Erre, L.; Piu, P.; Panzanelli, A.
Experiment for studying complex species formed by Cu2+ and 2,6-dihydroxybenzoate ions in aqueous solution through ESR spectroscopy.
Micera, G.; Deiana, S.; Erre, L.; Piu, P.; Panzanelli, A. J. Chem. Educ. 1984, 61, 646.
Coordination Compounds |
Qualitative Analysis |
Aqueous Solution Chemistry |
EPR / ESR Spectroscopy
|
Analysis of alcohols McCullough, Brother Thomas
Identifying unknown alcohols using boiling point and viscosity measurements.
McCullough, Brother Thomas J. Chem. Educ. 1984, 61, 68.
Alcohols |
Physical Properties |
Qualitative Analysis
|
Qualitative analysis by gas chromatography: GC versus the nose in formulating artificial fruit flavors Rasmussen, P. W.
Using GC retention indexes for the identification of the volatile compounds responsible for the odor of the banana.
Rasmussen, P. W. J. Chem. Educ. 1984, 61, 62.
Qualitative Analysis |
Gas Chromatography |
Separation Science
|
Qualitative determination of nitrate with triphenylbenzylphosphonium chloride Berry, Donna A.; Cole, Jerry J.
Since the reliability of the standard test for nitrate (adding ferrous sulfate and sulfuric acid) is questionable, a new qualitative scheme using triphenylbenzylphosphonium chloride is described.
Berry, Donna A.; Cole, Jerry J. J. Chem. Educ. 1984, 61, 60.
Qualitative Analysis
|
Qualitative analysis, with periodicity, for "real" solutions Rich, Ronald L.
The Bromide Scheme proposed begins with the solvent extraction of a group of bromo-complexes from a highly acidic solution, with several major and minor advantages.
Rich, Ronald L. J. Chem. Educ. 1984, 61, 53.
Qualitative Analysis |
Periodicity / Periodic Table
|
Non-cyanide detection of cadmium(II) and copper(II) ions in a mixture Syamal, A.; Ahmad, S.
The authors report a convenient method for the non-cyanide detection of copper (II) and cadmium (II) in a mixture.
Syamal, A.; Ahmad, S. J. Chem. Educ. 1983, 60, 518.
Qualitative Analysis
|
Scoring qualitative inorganic unknowns at the stockroom Brooks, David W.; Tipton, Thomas J.; Kinnan, Darrell A.
The authors share their strategy for efficiently organizing unknown chemicals in their stockroom that are used for qualitative analysis.
Brooks, David W.; Tipton, Thomas J.; Kinnan, Darrell A. J. Chem. Educ. 1983, 60, 389.
Qualitative Analysis |
Laboratory Management
|
A nontraditional qualitative organic analysis experiment Haynes, LeRoy W.
The author of this article wanted students to gain experience with experiments that come closer to separation and identification problems which a chemist would have to solve in a research situation. The activity described in this article was designed to meet that end.
Haynes, LeRoy W. J. Chem. Educ. 1983, 60, 234.
Qualitative Analysis
|
Qualitative analysis Cole, G. Mattney, Jr.; Waggoner, William H.
This article is the first in a series that reconsiders the qualitative analysis scheme in terms of suitability for large numbers of students and instructors.
Cole, G. Mattney, Jr.; Waggoner, William H. J. Chem. Educ. 1983, 60, 135.
Qualitative Analysis
|
Qualitative tests for manganese Guenther, William B.
A chemically interesting test that has been used successfully in a qualitative analysis course that introduces students to Mn (III).
Guenther, William B. J. Chem. Educ. 1983, 60, 134.
Qualitative Analysis
|
The study of a cobalt complex - a laboratory project Loehlin, James H.; Kahl, Stephen B.; Darlington, Jeanne A.
The laboratory involves synthesis followed by qualitative and quantitative analysis of either Co(NH3)5Cl3 or C0(NH3)6Cl3 over several weeks.
Loehlin, James H.; Kahl, Stephen B.; Darlington, Jeanne A. J. Chem. Educ. 1982, 59, 1048.
Coordination Compounds |
Magnetic Properties |
Qualitative Analysis |
Quantitative Analysis |
Synthesis
|
Equilibria in the silver arsenate-arsenic acid and silver phosphate-phosphoric acid systems Samuel, Patricia L.
A qualitative test for arsenate ion provides the basis for a colorful demonstration of the principles of relative acid strength, solubility product, and effects of pH on solubility.
Samuel, Patricia L. J. Chem. Educ. 1982, 59, 1043.
Equilibrium |
Qualitative Analysis |
pH |
Precipitation / Solubility |
Aqueous Solution Chemistry
|
Does the N-solution problem measure student proficiency? Monts, David L.; Pickering, Miles
An investigation to determine if the commonly used, N-solution, qualitative identification laboratory assessment problem assesses students' knowledge of descriptive chemistry.
Monts, David L.; Pickering, Miles J. Chem. Educ. 1982, 59, 1032.
Solutions / Solvents |
Qualitative Analysis
|
The qualitative test for nitrogen in organic compounds using the oxygen flask method Thomas, Rudolf
The oxygen flask method has been found superior to the traditional sodium fusion method, but for compounds containing both nitrogen and bromine a negative test for nitrogen is produced.
Thomas, Rudolf J. Chem. Educ. 1982, 59, 690.
Qualitative Analysis
|
Separation and determination of hydroxyacetophenones: An experiment in preparative TLC and UV spectroscopy Bick, I. R. C.; Blackman, A. J.; Browne, E. J.
A mixture of o-, m-, and p-hydroxyacetophenones is separated through thin-layer chromatography, and the constituents are identified by UV spectroscopy.
Bick, I. R. C.; Blackman, A. J.; Browne, E. J. J. Chem. Educ. 1982, 59, 618.
Separation Science |
Thin Layer Chromatography |
UV-Vis Spectroscopy |
Qualitative Analysis |
Quantitative Analysis
|
Rapid chemical identification of the nitrosyl group in complexes Subramanian, Periyasamy; Sarkar, Sabyasachi
A simple chemical test that enables rapid identification of coordinated nitric oxide.
Subramanian, Periyasamy; Sarkar, Sabyasachi J. Chem. Educ. 1982, 59, 527.
Coordination Compounds |
Qualitative Analysis
|
The separation and identification of straight chain hydrocarbons: An experiment using gas-liquid chromatography Benson, G. A.
Gas liquid chromatography used to separate and identify a mixture of C5 to C10 straight chain hydrocarbons.
Benson, G. A. J. Chem. Educ. 1982, 59, 344.
Separation Science |
Qualitative Analysis |
Alkanes / Cycloalkanes |
Chromatography
|
A correction on the Benedict test Hill, William D., Jr.
Sodium hydroxide is also needed for the formation of copper(I) oxide in the identification of carbohydrates.
Hill, William D., Jr. J. Chem. Educ. 1982, 59, 334.
Qualitative Analysis |
Carbohydrates
|
An individualized approach to qualitative analysis Haendler, Blanca L.; Cook, Robert; Siemiencow, George
Students are required to work out a separation scheme based on the results of experimentation with certain reagents and with the help of some reference materials.
Haendler, Blanca L.; Cook, Robert; Siemiencow, George J. Chem. Educ. 1982, 59, 333.
Qualitative Analysis |
Aqueous Solution Chemistry
|
The analysis of an amine mixture: An introductory analysis experiment Williams, T. R.
Analysis of a binary mixture of amines in which students are asked to identify each component and determine the weight percentage of each compound.
Williams, T. R. J. Chem. Educ. 1982, 59, 202.
Amines / Ammonium Compounds |
Qualitative Analysis |
Quantitative Analysis
|
Isolation, separation and identification of synthetic food colors Dixon, E. A.; Renyk, G.
A simple, inexpensive experiment for the extraction of synthetic dyes permitted in foodstuffs, and their separation and identification using thin-layer chromatography and ultraviolet/visible spectroscopy.
Dixon, E. A.; Renyk, G. J. Chem. Educ. 1982, 59, 67.
Separation Science |
Food Science |
Chromatography |
Thin Layer Chromatography |
Consumer Chemistry |
UV-Vis Spectroscopy |
Qualitative Analysis
|
Separating copper and cadmium in qualitative analysis Hayden, Don W.; Hunt, Richard L.
A different method for the separation of copper and cadmium in qualitative analysis based on the reductive potential precipitation of copper(II) as copper(I) thiocyanate.
Hayden, Don W.; Hunt, Richard L. J. Chem. Educ. 1982, 59, 59.
Separation Science |
Qualitative Analysis
|
Boiling points and small volumes: An apparatus and a method Leonard, Jack E.; Behelfer, Gary; Mohrmann, Leonard D.
The authors describe a convenient apparatus that can be used with thousands of students to perform qualitative analysis of organic substances using boiling points.
Leonard, Jack E.; Behelfer, Gary; Mohrmann, Leonard D. J. Chem. Educ. 1981, 58, 1029.
Qualitative Analysis |
Phases / Phase Transitions / Diagrams |
Physical Properties
|
Qualitative analysis of the halogens Spadaro, Joseph J., Jr.
A procedure for the qualitative determination of the halogens in the presence of one another using hexane rather than carbon tetrachloride.
Spadaro, Joseph J., Jr. J. Chem. Educ. 1980, 57, 372.
Qualitative Analysis
|
A novel method for the detection of nitrates Gupta, H. L.; Pande, P. N.; Ameta, Suresh A.
Replacing copper turnings with filter paper cuttings in the preliminary test for nitrates using sulfuric acid.
Gupta, H. L.; Pande, P. N.; Ameta, Suresh A. J. Chem. Educ. 1980, 57, 319.
Qualitative Analysis |
Laboratory Management
|
Teaching quantitative analysis courses by an integrated audiovisual method Ferraro, Carlos
Describes the results of the application of Integrated Audiovisual Methodology to the teaching of a quantitative analysis course.
Ferraro, Carlos J. Chem. Educ. 1980, 57, 185.
Qualitative Analysis
|
An organic chemistry experiment for forensic science majors Rothchild, Robert
Qualitative analysis of over-the-counter analgesics using thin-layer chromatography.
Rothchild, Robert J. Chem. Educ. 1979, 56, 757.
Forensic Chemistry |
HPLC |
Chromatography |
Medicinal Chemistry |
Qualitative Analysis |
Separation Science
|
A simple technique for the preparation of solutions for qualitative infrared spectroscopy Southwick, Everett W.; Kidd, Douglas H.
A simple technique for the preparation of solutions for qualitative infrared spectroscopy involves drawing the sample into a capillary tube through capillary action.
Southwick, Everett W.; Kidd, Douglas H. J. Chem. Educ. 1979, 56, 394.
Solutions / Solvents |
Spectroscopy |
IR Spectroscopy |
Qualitative Analysis
|
Interference with the molybdate test for phosphate in qualitative inorganic analysis Cavanaugh, Margaret A.; Pilger, Richard C., Jr.
Standard texts have generally not recognized the dramatic interference by the iodide ion; provides two simple remedies for this interference.
Cavanaugh, Margaret A.; Pilger, Richard C., Jr. J. Chem. Educ. 1979, 56, 342.
Qualitative Analysis |
Aqueous Solution Chemistry
|
X-ray fluorescence simulation Breneman, G. L.
A Basic program to simulate qualitative and quantitative analysis by X-ray fluorescence.
Breneman, G. L. J. Chem. Educ. 1979, 56, 303.
Qualitative Analysis |
Quantitative Analysis
|
Qualitative analysis simulation Binder, Bernhard
An interactive computer program simulating common qualitative analysis techniques that are suitable to identify 12 cations.
Binder, Bernhard J. Chem. Educ. 1979, 56, 108.
Qualitative Analysis
|
The effect of iodide concentration on the starch-indicator end point in the coulometric determination of As(III) Bell, Dorothy
Good analytical results are yielded using the techniques in this brief note.
Bell, Dorothy J. Chem. Educ. 1978, 55, 815.
Bioorganic Chemistry |
Qualitative Analysis
|
Separation of mixtures encountered in qualitative organic analysis: An anomalous case Pinkus, A. G.
The author presents an improved procedure for a separation of mixtures encountered in qualitative organic analysis.
Pinkus, A. G. J. Chem. Educ. 1978, 55, 458.
Qualitative Analysis
|
Sodium nitroprusside reagent II-A solvent modification Dougherty, Charles M.; Baumgarten, Reuben L.; Markowska, Maria; Battey, York C.
The authors report an improvement classification test for aliphatic and aryl amines.
Dougherty, Charles M.; Baumgarten, Reuben L.; Markowska, Maria; Battey, York C. J. Chem. Educ. 1978, 55, 341.
Qualitative Analysis |
Amines / Ammonium Compounds |
Catalysis
|
The qualitative organic analysis laboratory: A real life experience Caret, Robert L.
The author will provide copies of all handouts designed for scaffolding qualitative organic analysis upon request.
Caret, Robert L. J. Chem. Educ. 1978, 55, 246.
Qualitative Analysis
|
Classification test for aldehydes involving phase transfer catalysis Durst, H. Dupont; Gokel, George W.
Although common spectroscopic methods have largely supplanted the more classical methods for distinguishing aldehydes from ketones in many applications, aldehyde classification tests remain very useful in actual laboratory practice as well as important pedagogical device in qualitative organic chemistry.
Durst, H. Dupont; Gokel, George W. J. Chem. Educ. 1978, 55, 206.
Aldehydes / Ketones |
Qualitative Analysis
|
Gas chromatographic analysis of aerosol propellants Miller, James M.
A simple procedure for the qualitative analysis of commercial propellants by gas chromatography.
Miller, James M. J. Chem. Educ. 1977, 54, 735.
Gas Chromatography |
Chromatography |
Qualitative Analysis
|
Computer assisted instruction in qualitative analysis Bishop, Marvin
This Basic program includes 22 cations distributed into four groups.
Bishop, Marvin J. Chem. Educ. 1977, 54, 689.
Qualitative Analysis
|
Precipitation of lead as lead chloride in presence of mercuric ions Pyriadi, Thanun Mohamad; Polis, Aroosiak
In the presence of Hg2+ it seems that PbCl2 does not precipitate easily unless cooled.
Pyriadi, Thanun Mohamad; Polis, Aroosiak J. Chem. Educ. 1977, 54, 439.
Precipitation / Solubility |
Qualitative Analysis
|
Identification of FD&C dyes by visible spectroscopy. A consumer-oriented undergraduate experiment McKone, Harold T.
Absorption maxima and procedures for identifying 11 FD&C dyes through visible spectroscopy.
McKone, Harold T. J. Chem. Educ. 1977, 54, 376.
Qualitative Analysis |
Dyes / Pigments |
Spectroscopy |
UV-Vis Spectroscopy |
Consumer Chemistry |
Food Science
|
Simple qualitative analysis scheme for several environmentally important elements Lambert, Jack L.; Meloan, Clifton E.
A qualitative analysis scheme for Hg(I), Hg(II), Sb(III), Cr(III), Pb(II), Sr(II), Cu(II), Cd(II), As(III), Cl-, NO3-, and SO4-2.
Lambert, Jack L.; Meloan, Clifton E. J. Chem. Educ. 1977, 54, 249.
Qualitative Analysis
|
Lighter flint chemistry Hentz, F. C., Jr.; Long, G. G.
The author describes an inquiry investigation into the composition of a lighter flint.
Hentz, F. C., Jr.; Long, G. G. J. Chem. Educ. 1976, 53, 651.
Materials Science |
Quantitative Analysis |
Qualitative Analysis
|
Studies for the organic qual lab Southam, R. M.
The author shares a lab exercise that allows students to develop analysis forming and note its role as essential to a chemical investigation.
Southam, R. M. J. Chem. Educ. 1976, 53, 34.
Qualitative Analysis
|
Perspectives on curricula: Qualitative analysis revisited Brooks, David W.; Holtzclaw, Henry F., Jr.; Lewis, J. D.
Considers curricula from the viewpoints of reinforcement theory; concrete vs. abstract reasoning; and the cognitive, psychomotor, and affective domains.
Brooks, David W.; Holtzclaw, Henry F., Jr.; Lewis, J. D. J. Chem. Educ. 1975, 52, 581.
Qualitative Analysis |
Learning Theories
|
Simulated student samples Parker, Gordon A.
The availability of directions for the preparation of samples simulating animal tissue ash, coal ash, coal ash, copper refinery flue dust, plant ash, rodent teeth ash, and soil ash.
Parker, Gordon A. J. Chem. Educ. 1975, 52, 106.
Natural Products |
Quantitative Analysis |
Qualitative Analysis
|
Qualitative and quantitative gas chromatography for the undergraduate Karasek, F. W.; De Decker, E. H.; Tiernay, J. M.
The authors present two experiments which provide beginning student a broad general knowledge of the gas chromatography field.
Karasek, F. W.; De Decker, E. H.; Tiernay, J. M. J. Chem. Educ. 1974, 51, 816.
Qualitative Analysis |
Gas Chromatography
|
Brief chemistry of the elements (Hall, James L.; Keyworth, Donald A.) Davenport, Derek A.
Davenport, Derek A. J. Chem. Educ. 1973, 50, A414.
Descriptive Chemistry |
Qualitative Analysis
|
Preparation of standard solutions Smith, B. W.; Parsons, M. L.
A summary of compounds recommended for preparing solutions containing known concentrations of over seventy elements.
Smith, B. W.; Parsons, M. L. J. Chem. Educ. 1973, 50, 679.
Qualitative Analysis
|
Spot test for detection of saturated and unsaturated fatty acids Singh, Eric J.
A 1% solution of copper sulfate can be used for the detection of saturated and unsaturated fatty acids.
Singh, Eric J. J. Chem. Educ. 1973, 50, 669.
Qualitative Analysis |
Fatty Acids
|
Sensitive CN test McCullough, Thomas, C.S.C.
Comments on the sodium fusion test.
McCullough, Thomas, C.S.C. J. Chem. Educ. 1973, 50, 656.
Qualitative Analysis
|
Separation and identification of the ions in the hydrochloric acid group Antikainen, P. J.
This procedure applies paper- and ion-exchange chromatography to the separation and identification of the ions in the hydrochloric acid group.
Antikainen, P. J. J. Chem. Educ. 1973, 50, 595.
Separation Science |
Qualitative Analysis |
Chromatography
|
Computer-simulated qualitative inorganic chemistry Francis, Larry D.
A computer simulation is especially effective for teaching qualitative chemistry because many of the time-consuming procedures necessary for good results can be eliminated; the guiding philosophy of this lesson is on chemical reasoning rather than laboratory practice.
Francis, Larry D. J. Chem. Educ. 1973, 50, 556.
Qualitative Analysis
|
A questionable method of distinguishing maleic and fumaric acids Noldan, Lawrence R.; Pollard, Bruce
Fumaric acid causes no change in the blue color of ditto print, but maleic acid turns it a bright green.
Noldan, Lawrence R.; Pollard, Bruce J. Chem. Educ. 1973, 50, 457.
Acids / Bases |
Qualitative Analysis
|
A use for broken glass electrodes Davidson, John E.
Once broken, the electrode can still be used as an indicator electrode for a potentiometric precipitation titration of silver or halide ions.
Davidson, John E. J. Chem. Educ. 1973, 50, 375.
Laboratory Equipment / Apparatus |
Titration / Volumetric Analysis |
Qualitative Analysis
|
An instructional computer program to generate microanalysis data Eliason, Robert
An instructional, Fortran IV, computer program to generate microanalysis data.
Eliason, Robert J. Chem. Educ. 1973, 50, 371.
Qualitative Analysis
|
A qualitative analysis test for chromium Berthold, Mary Ellen Sr.; Huchital, Daniel
This paper reports a more convenient and lasting method to test for the presence of chromium using a separate portion of the sample and observing the formation of the deep purple chromium(III)-EDTA complex.
Berthold, Mary Ellen Sr.; Huchital, Daniel J. Chem. Educ. 1973, 50, 340.
Qualitative Analysis
|
Inexpensive scale expansion for ion selective electrodes Parsons, P. G.
The scale of an ordinary pH meter can be expanded by connecting a 1-mV recorder or a 1-amp galvanometer.
Parsons, P. G. J. Chem. Educ. 1973, 50, 175.
Ion Selective Electrodes |
Qualitative Analysis |
pH |
Laboratory Equipment / Apparatus
|
TLC detection of caffeine in commercial products Pavlik, James W.
An introductory experiment that involves the thin layer chromatography detection of caffeine in a variety of familiar pharmaceutical products.
Pavlik, James W. J. Chem. Educ. 1973, 50, 134.
Thin Layer Chromatography |
Chromatography |
Separation Science |
Consumer Chemistry |
Drugs / Pharmaceuticals |
Qualitative Analysis
|
Calcium oxide-zinc fusion. The successor to sodium fusion in the undergraduate laboratory Snyder, Carl H.; Sickels, Jackson P.; Del Valle, Clara J.
With extensive modification, a calcium oxide-zinc fusion technique shows promise to replace sodium fusion as the method of choice for qualitative elemental analysis in the first-year organic laboratory.
Snyder, Carl H.; Sickels, Jackson P.; Del Valle, Clara J. J. Chem. Educ. 1973, 50, 72.
Qualitative Analysis
|
Ions in aqueous systems. An introduction to chemical equilibrium and solution chemistry (Moeller, Therald) Guenther, W. B.
Guenther, W. B. J. Chem. Educ. 1972, 49, A697.
Aqueous Solution Chemistry |
Equilibrium |
Solutions / Solvents |
Qualitative Analysis
|
Qualitative concepts from quantum chemistry (Drago, Russell) Deskin, William A.
Deskin, William A. J. Chem. Educ. 1972, 49, A606.
Quantum Chemistry |
Qualitative Analysis
|
An unusual reaction of a ketal with base. An undergraduate organic experiment Marchand, Alan P.
An experiment that is designed to utilize primarily spectral methods (nmr and ir) to identify an unknown product of a reaction performed in the laboratory; it also demonstrates that, under certain conditions, ketals can be made to react with a base.
Marchand, Alan P. J. Chem. Educ. 1972, 49, 841.
Qualitative Analysis
|
Armchair unknowns. A simple CAI qual organic simulation Venier, Clifford G.; Reinecke, Manfred G.
The purpose of Armchair Unknowns is to teach the logic of qualitative organic analysis more rapidly and effectively than is possible in the traditional wet laboratory.
Venier, Clifford G.; Reinecke, Manfred G. J. Chem. Educ. 1972, 49, 541.
Qualitative Analysis
|
Organic chemistry laboratory. A non-traditional approach Nugent, Maurice J.
A problem-solving approach to the organic chemistry laboratory in which students are asked to identify and then synthesize two unknowns.
Nugent, Maurice J. J. Chem. Educ. 1972, 49, 491.
Synthesis |
Qualitative Analysis
|
Thermal decomposition of potassium bisoxalatocuprate(II) dihydrate. An inorganic-analytical experiment Darley, J. R.; Hoppe, J. I.
This investigation includes some elementary gravimetric analysis and qualitative analysis in addition to a simple extraction procedure and a range of titrimetric estimations.
Darley, J. R.; Hoppe, J. I. J. Chem. Educ. 1972, 49, 365.
Titration / Volumetric Analysis |
Gravimetric Analysis |
Qualitative Analysis
|
Benzenesulfonyl chloride does react with tertiary amines. The Hinsberg test in proper prospective Gambill, C. R.; Roberts, T. D.; Shechter, H.
Addresses the long standing myths that tertiary amines do not react with nitrous acid or benzylsulfonyl chloride.
Gambill, C. R.; Roberts, T. D.; Shechter, H. J. Chem. Educ. 1972, 49, 287.
Amines / Ammonium Compounds |
Qualitative Analysis
|
Instrumental techniques compared by analysis of a reaction mixture Fairless, Billy J.; Dunn, Howard E.; Foster, Daniel O.
The purpose of this experiment is to acquaint the student with how a combination of instruments (glc, ir, and nmr) can be used to separate as well as to identify each compound in a reaction mixture.
Fairless, Billy J.; Dunn, Howard E.; Foster, Daniel O. J. Chem. Educ. 1971, 48, 827.
Instrumental Methods |
Gas Chromatography |
Qualitative Analysis |
Separation Science
|
Detection of carboxylic acids by formation of ferric hydroxamates Cleland, George H.; Knight, Duane W.
Offers an improved method for the detection of carboxylic acids through the formation of ferric hydroxamates.
Cleland, George H.; Knight, Duane W. J. Chem. Educ. 1970, 47, 781.
Carboxylic Acids |
Qualitative Analysis
|
Recrystallization and melting point determination Kaye, Irving Allan; Yuska, Henry
This experiment is essentially an exercise in recrystallization and identification, by melting point and mixed melting point determination, an unknown ketone that has been transformed into either its 2,4-dinitrophenylhydrazone or semicarbazone derivative.
Kaye, Irving Allan; Yuska, Henry J. Chem. Educ. 1970, 47, 703.
Crystals / Crystallography |
Aldehydes / Ketones |
Qualitative Analysis
|
Experiments in paper chromatography Stiles, D. A.; Ramaswamy, K. K.
Briefly summarizes a series of paper chromatography experiments that demonstrate basic physical and inorganic principles, as well as providing an introduction to a useful separation technique.
Stiles, D. A.; Ramaswamy, K. K. J. Chem. Educ. 1970, 47, 688.
Chromatography |
Separation Science |
Qualitative Analysis
|
Detection of chloride, bromide, and iodide following sodium fusion McCullough, Thomas; Allaire, Pierre N.; Boettcher, Brian R.
Presents the use of paper chromatography in conjunction with the sodium fusion detection of chloride, bromide, and iodide.
McCullough, Thomas; Allaire, Pierre N.; Boettcher, Brian R. J. Chem. Educ. 1970, 47, 217.
Qualitative Analysis |
Chromatography
|
On-line computer printing of NMR spectra Rondeau, Roger E.; Rish, Hughey A. III
The program described reduces the probability of assignment error while also eliminating the most tedious task in the analysis of complex NMR spectra.
Rondeau, Roger E.; Rish, Hughey A. III J. Chem. Educ. 1970, 47, 139.
Spectroscopy |
NMR Spectroscopy |
Qualitative Analysis
|
A computer program for identifying organic compounds Gasser, William; Emmons, John L.
This program is based on five determinations: melting or boiling point; elemental analysis for nitrogen, sulfur, and halogens; and the aluminum chloride-azoxybenzene test.
Gasser, William; Emmons, John L. J. Chem. Educ. 1970, 47, 137.
Molecular Properties / Structure |
Qualitative Analysis
|
Analytical chemistry - Two supportive views. Where the action is... Wharton, H. Whitney
The author argues for the relevance of analytical chemistry.
Wharton, H. Whitney J. Chem. Educ. 1970, 47, 58.
Qualitative Analysis |
Quantitative Analysis
|
Analytical chemistry - Two supportive views. Where the action is... Wharton, H. Whitney
The author argues for the relevance of analytical chemistry.
Wharton, H. Whitney J. Chem. Educ. 1970, 47, 58.
Qualitative Analysis |
Quantitative Analysis
|
Hydrolysis of latex paint in dimethyl sulfoxide: An organic laboratory experiment Vinson, Joe A.
The purpose of this experiment is to hydrolyze the ester groups of the vinyl acetate and acrylic ester found in latex paint and identify the R group of the acrylic ester.
Vinson, Joe A. J. Chem. Educ. 1969, 46, 877.
Qualitative Analysis |
IR Spectroscopy
|
The essential oils: A series of laboratory experiments Runquist, Olaf
Describes a variety of "research type" laboratory problems for the second term introductory organic chemistry course involving essential oils.
Runquist, Olaf J. Chem. Educ. 1969, 46, 846.
Lipids |
Qualitative Analysis |
Separation Science
|
First semester qualitative analysis DeLap, James H.
Describes the student work involved in a freshman laboratory course entitled "Chemical Periodicity."
DeLap, James H. J. Chem. Educ. 1969, 46, 837.
Qualitative Analysis
|
Cupferron as a reagent in qualitative analysis Parks, A. O.; DuBose, Betsy
A short on the use of cupferron (nitrosophenylhydroxylamine, NH4+ salt) for the removal of Cu(II) from a solution containing both Cu(II) and Cd(II).
Parks, A. O.; DuBose, Betsy J. Chem. Educ. 1969, 46, 768.
Qualitative Analysis
|
Chloramine-T as a substitute for chlorine water in qualitative analysis Nair, B. G. K.; Nair, C. G. R.
A brief note on the use of chloramine-T as a substitute for chlorine water as a reagent for detecting Br- and I- ions.
Nair, B. G. K.; Nair, C. G. R. J. Chem. Educ. 1969, 46, 755.
Qualitative Analysis |
Laboratory Management
|
Basic organic laboratory techniques and problem solving: The nitration of 4-nitrophenol Pearson, Robert E.
The experiment described requires application of melting point data and the technique of recrystallization to identify the product of a simple chemical reaction.
Pearson, Robert E. J. Chem. Educ. 1969, 46, 692.
Physical Properties |
Phases / Phase Transitions / Diagrams |
Qualitative Analysis |
Phenols
|
Computer graded qualitative analysis experiments Deutsch, J. L.; Deutsch, E. W.
A brief note on a program for the qualitative analysis laboratory that grades students' experimental results, records their grades, and calculates course averages.
Deutsch, J. L.; Deutsch, E. W. J. Chem. Educ. 1969, 46, 649.
Qualitative Analysis
|
A review of techniques in the Lassaigne sodium-fusion Gower, R. P.; Rhodes, I. P.
The present article is intended to collect the available methods of the sodium-fusion test with some indication of the most suitable circumstances in which each one may be used.
Gower, R. P.; Rhodes, I. P. J. Chem. Educ. 1969, 46, 606.
Laboratory Management |
Qualitative Analysis
|
Reflectance spectroscopic analysis of dyes separated by thin layer chromatography Frodyma, M. M.; Frei, R. W.
This study attempts to verify the usefulness of reflectance spectroscopy as an analytical tool in the hands of the inexperienced analyst.
Frodyma, M. M.; Frei, R. W. J. Chem. Educ. 1969, 46, 522.
Spectroscopy |
Dyes / Pigments |
Thin Layer Chromatography |
Qualitative Analysis |
Quantitative Analysis
|
Identification of carboxylic acids: Use of N-methylpiperazine and N-phenylpiperazine Duff, J. G.; Yung, D. K.; Brenner, R. J.; Wilson, B. J.; Racz, W. J.
Demonstrates that N-phenylpiperazine is a useful reagent for the identification of carboxylic acids.
Duff, J. G.; Yung, D. K.; Brenner, R. J.; Wilson, B. J.; Racz, W. J. J. Chem. Educ. 1969, 46, 388.
Carboxylic Acids |
Qualitative Analysis
|
Improving potassium flame tests Strong, Frederick C., III
Describes ways for optimizing the classical flame test for potassium.
Strong, Frederick C., III J. Chem. Educ. 1969, 46, 178.
Atomic Properties / Structure |
Qualitative Analysis
|
A simple method for the identification of borosilicate glass Drake, Robert F.
Provides an alternative to using the refractive index of benzene in carbon tetrachloride.
Drake, Robert F. J. Chem. Educ. 1969, 46, 48.
Qualitative Analysis
|
Introduction to Qualitative Analysis Layde, Durward C.; Busch, Daryle H.) Larson, W. D.
Larson, W. D. J. Chem. Educ. 1968, 45, A984.
Qualitative Analysis
|
Nitrogen chemistry. E. Nitrites and nitrates Mancuso, Carl J.; Alyea, Hubert N.; Slabaugh, W. A.
Demonstrations include nitric acid + H2S, sodium nitrate + carbon, fire-writing with KNO3, nitrate ring test, nitrate versus nitrite, and micro-analysis for nitrogen compounds.
Mancuso, Carl J.; Alyea, Hubert N.; Slabaugh, W. A. J. Chem. Educ. 1968, 45, A607.
Qualitative Analysis |
Microscale Lab |
Oxidation / Reduction
|
Spectrometric identification of insect sex attractants Silverstein, Robert M.
Uses spectrometric methods to identify the sex attractants of three types of beetle pests.
Silverstein, Robert M. J. Chem. Educ. 1968, 45, 794.
Spectroscopy |
IR Spectroscopy |
UV-Vis Spectroscopy |
Qualitative Analysis |
Mass Spectrometry |
NMR Spectroscopy
|
Calcium carbonate equilibria in the oceans - ion pair formation Morton, Stephen D.; Lee, G. Fred
Discusses some of the problems encountered in studying the chemistry of lakes and oceans, focussing on the solubility of calcium carbonate in marine environments.
Morton, Stephen D.; Lee, G. Fred J. Chem. Educ. 1968, 45, 513.
Aqueous Solution Chemistry |
Water / Water Chemistry |
Precipitation / Solubility |
Qualitative Analysis
|
The identification of vegetable oils: A gas chromatographic experiment Cover, Richard E.
In this procedure the student is given a sample of oil which he saponifies and then esterfies to form the methyl esters of the fatty acids; the esters are then extracted, concentrated, and identified through gas chromatography.
Cover, Richard E. J. Chem. Educ. 1968, 45, 120.
Gas Chromatography |
Instrumental Methods |
Esters |
Qualitative Analysis
|
Rapid detection of cations and anions (Charlot, Gaston) Williams, T. R.
Williams, T. R. J. Chem. Educ. 1967, 44, A62.
Qualitative Analysis |
Aqueous Solution Chemistry
|
An analytical approach to a short organic laboratory Finley, K. Thomas.; Wilson, James, Jr.
Describes a laboratory exercise in which students are asked to identify three simple unknowns.
Finley, K. Thomas.; Wilson, James, Jr. J. Chem. Educ. 1967, 44, 666.
Nonmajor Courses |
Qualitative Analysis
|
The stoichiometry of an oxidation-reduction reaction Latimer, George W., Jr.
A short note on the titration of hydrazine sulfate with standard bromate in the presence of sodium molybdate that requires students to identify the products through the use of some elementary qualitative analysis.
Latimer, George W., Jr. J. Chem. Educ. 1967, 44, 537.
Stoichiometry |
Oxidation / Reduction |
Reactions |
Titration / Volumetric Analysis |
Qualitative Analysis
|
Qualitative analysis without removing phosphate Poonia, N. S.; Bhagwat, W. V.
Describes a scheme for the analysis of groups III, IV, and V, carried out below pH 7, which does not necessitate the removing of phosphate.
Poonia, N. S.; Bhagwat, W. V. J. Chem. Educ. 1967, 44, 484.
Qualitative Analysis
|
Detection of iron with salicylimine Poonia, N. S.; Bakre, V. P.; Bal, M. S.
Describes the detection of iron with salicylimine.
Poonia, N. S.; Bakre, V. P.; Bal, M. S. J. Chem. Educ. 1967, 44, 483.
Aqueous Solution Chemistry |
Qualitative Analysis |
Metals
|
Reagents for analysis of iron(II)-iron(III) mixtures Lal, Sudarshan; Srivastava, S. N.
Presents some analytical reagents that may be used for the analysis of iron(II)-iron(III) mixtures.
Lal, Sudarshan; Srivastava, S. N. J. Chem. Educ. 1967, 44, 482.
Aqueous Solution Chemistry |
Qualitative Analysis |
Metals
|
Detection of mercury(I) and mercury(II) in the presence of each other Lal, Sudarshan; Srivastava, S. N.
Presents some analytical reagents that may be used for the analysis of mercury(I) and mercury(II) in the presence of each other.
Lal, Sudarshan; Srivastava, S. N. J. Chem. Educ. 1967, 44, 482.
Aqueous Solution Chemistry |
Qualitative Analysis |
Metals
|
Some analytical reagents for tin(II)-tin(IV) mixtures Lal, Sudarshan; Srivastava, S. N.
Presents some analytical reagents that may be used for the analysis of tin(II)-tin(IV) mixtures.
Lal, Sudarshan; Srivastava, S. N. J. Chem. Educ. 1967, 44, 481.
Qualitative Analysis |
Aqueous Solution Chemistry |
Metals
|
Spot tests for silver(I) and manganese(II) Poonia, N. S.; Gupta, H. K. L.
This investigation introduces piperidine as a new reagent for this test and describes an improved technique with increased sensitivity.
Poonia, N. S.; Gupta, H. K. L. J. Chem. Educ. 1967, 44, 480.
Qualitative Analysis |
Aqueous Solution Chemistry |
Metals
|
Qualitative analysis with paper chromatography Poonia, N. S.
A spot of an unknown mixture is subjected to radial development, and the circular chromatogram is divided into a number of segments used for the detection of different cations or groups of cations.
Poonia, N. S. J. Chem. Educ. 1967, 44, 477.
Qualitative Analysis |
Chromatography |
Separation Science
|
Ionization, Electricity D. Special electrical phenomena Bernard, Robert; Slabaugh, W. H.
Demonstrations include cation analysis, conductivity during the titration of Ba(OH)2 + HCl vs H2C2O4, and conductivity during the titration of Ba(OH)2 + HCl vs H3PO4.
Bernard, Robert; Slabaugh, W. H. J. Chem. Educ. 1966, 43, A901.
Titration / Volumetric Analysis |
Quantitative Analysis |
Qualitative Analysis |
Electrochemistry |
Conductivity
|
Chemical Principles in Calculations of Ionic Equilibria: Solution Theory for General Chemistry, Qualitative Analysis, and Quantitative Analysis (Margolis, Emil J.) Whiteker, Roy A.
Whiteker, Roy A. J. Chem. Educ. 1966, 43, 684.
Equilibrium |
Qualitative Analysis |
Quantitative Analysis |
Solutions / Solvents
|
Qualitative Analysis (Hovey, Nelson W.; Krohn, Albertine) Kieff, Lester
Kieff, Lester J. Chem. Educ. 1966, 43, 507.
Qualitative Analysis
|
Use of KMnO4, to oxidize interfering organic anions in qualitative analysis Poonia, N. S.; Bhagwat, W. V.
A simple procedure is presented here that is based upon the oxidation of organic material by permanganate ion in acidified medium.
Poonia, N. S.; Bhagwat, W. V. J. Chem. Educ. 1966, 43, 424.
Qualitative Analysis |
Oxidation / Reduction
|
Reagents for the qualitative analysis of Ce(III)-Ce(IV) mixtures Lal, Sudarshan; Srivastava, S. N.
Reports a series of comparisons between the behavior of Ce(III) and Ce(IV) toward several analytical reagents.
Lal, Sudarshan; Srivastava, S. N. J. Chem. Educ. 1966, 43, 424.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Errors in the detection of cadmium: Light-colored copper-thioacetamide complexes Isenberg, N.; Kreger, H. J.; Middleton, R. H.
It is important to take precautions in the identification of cadmium in the presence of copper.
Isenberg, N.; Kreger, H. J.; Middleton, R. H. J. Chem. Educ. 1966, 43, 422.
Coordination Compounds |
Qualitative Analysis
|
Fusion reactions under the microscope Benedetti-Pichler, A. A.; Vikin, Joe
An electrically heated wire is used to identify a variety of cations and anions according to colors observed under a microscope.
Benedetti-Pichler, A. A.; Vikin, Joe J. Chem. Educ. 1966, 43, 421.
Reactions |
Qualitative Analysis |
Atomic Properties / Structure
|
What has happened to qualitative analysis: A 1966 survey Krohn, Albertine
Reports the result of a survey sent to 458 chemistry departments regarding future planned changes in qualitative analysis.
Krohn, Albertine J. Chem. Educ. 1966, 43, 419.
Qualitative Analysis
|
The interaction of chromium(III) ion with hydroxide ion. An experiment for the undergraduate inorganic laboratory Reinhardt, Richard A.
In the interactions with hydroxide ion, at least three different types of reactions may be considered: protolysis, the formation of a sparingly soluble hydroxide, and the formation of polymeric species.
Reinhardt, Richard A. J. Chem. Educ. 1966, 43, 382.
Aqueous Solution Chemistry |
Transition Elements |
Metals |
Qualitative Analysis |
Acids / Bases
|
The systematic identification of organic compounds: A laboratory manual (Shriner, Ralph; Fuson, Reynold C.; Curtin, David Y.) Bossert, Roy G.
Bossert, Roy G. J. Chem. Educ. 1965, 42, A324.
Qualitative Analysis
|
Semimicro qualitative organic analysis: The systematic identification of organic compounds (Cheronis, Nicholas D.; Entrikin, John B.; Hodnett, Ernest M.) Webb, James L. A.
Webb, James L. A. J. Chem. Educ. 1965, 42, 691.
Microscale Lab |
Qualitative Analysis
|
Qualitative test for ketones, aromatic aldehydes, and aliphatic aldehydes Morrison, James D.
The Bordwell-Wellman solution of chromic anhydride in aqueous sulfuric acid is an excellent reagent for distinguishing aldehydes from ketones.
Morrison, James D. J. Chem. Educ. 1965, 42, 554.
Qualitative Analysis |
Aldehydes / Ketones |
Aromatic Compounds
|
Experiments on metal amine salts Haight, G. P., Jr.
Tetrammine monaquo copper(II) sulfate is prepared and studied qualitatively and quantitatively.
Haight, G. P., Jr. J. Chem. Educ. 1965, 42, 468.
Metals |
Covalent Bonding |
Hydrogen Bonding |
Qualitative Analysis |
Quantitative Analysis
|
Qualitative tests for K+ McCoy, Robert E.
Flame tests of solid or concentrated cobaltnitrites produce results that are easily mistaken for potassium.
McCoy, Robert E. J. Chem. Educ. 1965, 42, 444.
Qualitative Analysis |
Atomic Spectroscopy
|
Cation analysis with thin layer chromatography Goller, Edwin J.
Reported here is an adaptation of thin layer chromatography to an undergraduate laboratory operation for cation analysis.
Goller, Edwin J. J. Chem. Educ. 1965, 42, 442.
Chromatography |
Thin Layer Chromatography |
Qualitative Analysis
|
Detection of chloride ion in the presence of bromide, iodide, and thiocyanate ions Paul, Armine D.; Gibson, John A., Jr.
Summarizes and evaluates several published methods for detecting chloride ions in the presence of bromide, iodide, and thiocyanate ions.
Paul, Armine D.; Gibson, John A., Jr. J. Chem. Educ. 1965, 42, 440.
Aqueous Solution Chemistry |
Qualitative Analysis |
Solutions / Solvents |
Precipitation / Solubility
|
Neothorin spot test for zirconium and hafnium Johnson, Arnold R., Jr.
Describes the use of neothorin in a spot test for zirconium and hafnium.
Johnson, Arnold R., Jr. J. Chem. Educ. 1965, 42, 439.
Qualitative Analysis
|
PiperidineA spot reagent for Mn(II) Poonia, N. S.; Gupta, H. K. L.
Describes the use of piperidine as a spot reagent for manganese.
Poonia, N. S.; Gupta, H. K. L. J. Chem. Educ. 1965, 42, 438.
Qualitative Analysis
|
Two nitrosophenol reagents for iron(II) and cobalt Peach, S. M.
Describes the preparation of two new nitrosophenol reagents for the detection and assay of iron(II) and cobalt: dinitrosoresorcinol sodium sulphonate and nitroso-4-chlororesorcinol.
Peach, S. M. J. Chem. Educ. 1965, 42, 437.
Qualitative Analysis
|
Applications of sodium-lead alloy in qualitative inorganic analysis Edge, Robert A.; Fowles, Gerald W. A.
This note describes how sodium-lead alloy may be used n qualitative inorganic analysis, both as a reductant in acid and alkaline media, and as a source of sodium hydroxide for hydroxide precipitations.
Edge, Robert A.; Fowles, Gerald W. A. J. Chem. Educ. 1965, 42, 436.
Qualitative Analysis |
Acids / Bases
|
Letter to the editor Gennaro, A. R.
Two recent comments on the limitation of the Hinsberg method for primary amines appear to place unwarranted emphasis on an alleged error in modern texts.
Gennaro, A. R. J. Chem. Educ. 1965, 42, 48.
Qualitative Analysis
|
An inexpensive centrifuge for micro qualitative analysis Gaddis, Shirley W.
Presents an inexpensive micro centrifuge.
Gaddis, Shirley W. J. Chem. Educ. 1964, 41, 625.
Laboratory Equipment / Apparatus |
Microscale Lab |
Separation Science |
Qualitative Analysis
|
A qualitative test for the presence of paramagnetic species Goldberg, P.
This article describes a simple method for demonstrating the presence of a paramagnetic species.
Goldberg, P. J. Chem. Educ. 1964, 41, 450.
Qualitative Analysis |
Magnetic Properties
|
The use of polyelectrolytes to improve qualitative analysis preparations Williams, T. R.; Carter, Robert
Describes the use of polyelectrolytes to deal with the problem of precipitates in colloidal form.
Williams, T. R.; Carter, Robert J. Chem. Educ. 1964, 41, 442.
Qualitative Analysis |
Colloids
|
The effect of mineral acid on methyl violet solutions McKaig, Nelson, Jr.
Test results indicate that the four common strong mineral acids cause fading of methyl violet indicator.
McKaig, Nelson, Jr. J. Chem. Educ. 1964, 41, 441.
Qualitative Analysis |
Acids / Bases |
Aqueous Solution Chemistry
|
Separation and identification of copper and cadmium Poonia, N. S.; Gupta, H. K. L.
Describes three semimicro procedures for the separation and identification of copper and cadmium.
Poonia, N. S.; Gupta, H. K. L. J. Chem. Educ. 1964, 41, 439.
Qualitative Analysis |
Separation Science
|
Resacetophenone oxime chelation of copper in the presence of cadmium Kadarmandalgi, S. G.
The use of resacetophenone oxime as a chelating agent for copper(II) ions avoids the use of cyanide in the separation of copper from cadmium ions.
Kadarmandalgi, S. G. J. Chem. Educ. 1964, 41, 438.
Qualitative Analysis
|
Spot test for detection of manganese Kadarmandalgi, S. G.
Describes a procedure for the spot test detection of manganese.
Kadarmandalgi, S. G. J. Chem. Educ. 1964, 41, 437.
Qualitative Analysis
|
A fluorescent indicator for a confirmatory test for the aluminum ion Haworth, Daniel T.; Starshak, R. J.; Surak, J. G.
Presents a new confirmatory test for the aluminum ion using 1-(2-pyridylazo)-2-napthol as a fluorescent indicator.
Haworth, Daniel T.; Starshak, R. J.; Surak, J. G. J. Chem. Educ. 1964, 41, 436.
Qualitative Analysis
|
Column chromatographic analysis of the metal ions Marie, Sister Eleanor, S. S. J.
Presents a column chromatographic analysis of the metal ions that is superior to conventional methods.
Marie, Sister Eleanor, S. S. J. J. Chem. Educ. 1964, 41, 436.
Qualitative Analysis |
Chromatography |
Metals |
Separation Science
|
The quinhydrone test for amines Meek, Willoughby F.; Entrikin, John B.
Proposes modifications to the quinhydrone test for amines that allows for accurate classification.
Meek, Willoughby F.; Entrikin, John B. J. Chem. Educ. 1964, 41, 420.
Amines / Ammonium Compounds |
Qualitative Analysis
|
A new qualitative reagent for aluminum. A specific qualitative reagent for copper Young, Jay A.; Taylor, John K.
Suggests research questions to accompany an earlier published JCE article.
Young, Jay A.; Taylor, John K. J. Chem. Educ. 1963, 40, A564.
Qualitative Analysis
|
Non-cyanide detection of cadmium in the presence of copper Young, Jay A.; Taylor, John K.
Suggests research questions to accompany an earlier published JCE article.
Young, Jay A.; Taylor, John K. J. Chem. Educ. 1963, 40, A564.
Qualitative Analysis
|
A gas chromatography demonstration apparatus McLean, John; Pauson, Peter L.
Describes an apparatus for the separation of volatile organic compounds by gas chromatography using oxygen or air as the carrier gas.
McLean, John; Pauson, Peter L. J. Chem. Educ. 1963, 40, 539.
Gas Chromatography |
Separation Science |
Gases |
Qualitative Analysis
|
Qualitative detection of Ba, Sr, and Ca ions Pariza, Richard
This short note presents a procedure for the separation of Ba++, Ca++, and Sr++ in pairs or combination of the three.
Pariza, Richard J. Chem. Educ. 1963, 40, 417.
Qualitative Analysis |
Separation Science
|
Preparation of solutions for qualitative analysis with a cation exchange resin Key, Paul; Sohl, Edward; Tiews, Robert; Bricker, Clark
A simple technique utilizing an ion exchange resin has been developed that eliminates most of the difficulties encountered in the dissolution of insoluble salts prior to analysis.
Key, Paul; Sohl, Edward; Tiews, Robert; Bricker, Clark J. Chem. Educ. 1963, 40, 416.
Qualitative Analysis |
Ion Exchange
|
A simple separation of the group II-A sulfides O'Donnell, T. A.
Presents a group separation scheme for the separation of lead from bismuth and copper from cadmium.
O'Donnell, T. A. J. Chem. Educ. 1963, 40, 415.
Qualitative Analysis |
Separation Science
|
Non-cyanide detection of cadmium Dutta, R. L.; Choudhury, S. Dutta
This short note presents a non-cyanide method for the detection of cadmium in the presence of copper.
Dutta, R. L.; Choudhury, S. Dutta J. Chem. Educ. 1963, 40, 414.
Qualitative Analysis
|
Dissolving difficultly soluble salts with chelating ion exchange resins Rich, Ronald
Chelating resins such as Dowex A-1 and Chelex 100 provide a new way of separating the ions of some difficultly soluble salts.
Rich, Ronald J. Chem. Educ. 1963, 40, 414.
Ion Exchange |
Precipitation / Solubility |
Qualitative Analysis |
Coordination Compounds |
Separation Science
|
Separation and identification of copper in the presence of cadmium Abrao, Alcidio
Suggests techniques for the separation and identification of copper in the presence of cadmium without relying on HCN.
Abrao, Alcidio J. Chem. Educ. 1963, 40, 413.
Qualitative Analysis |
Metals |
Separation Science |
Ion Exchange
|
The present and future of qualitative analysis: Report of a survey Hovey, Nelson W.
Reports the results of a survey whose objective was to determine to what extent new concepts in the teaching of chemistry have affected the content and place in the curriculum of courses in qualitative analysis.
Hovey, Nelson W. J. Chem. Educ. 1963, 40, 410.
Qualitative Analysis
|
Introduction to qualitative analysis (Layde, Durward C.) Larson, W. D.
Larson, W. D. J. Chem. Educ. 1962, 39, 656.
Qualitative Analysis
|
Spectrometric identification of organic compounds Silverstein, Robert M.; Bassler, G. Clayton
Presents a sequence of procedures for identifying an unknown organic liquid using mass, NMR, IR, and UV spectroscopy, along with specific examples of unknowns and their spectra,
Silverstein, Robert M.; Bassler, G. Clayton J. Chem. Educ. 1962, 39, 546.
Spectroscopy |
Qualitative Analysis |
Mass Spectrometry |
IR Spectroscopy |
NMR Spectroscopy |
UV-Vis Spectroscopy
|
Qualitative elemental analysis (Swift, E. H.; Schaefer, William P.) Tyree, S. Y., Jr.
Tyree, S. Y., Jr. J. Chem. Educ. 1962, 39, 432.
Qualitative Analysis
|
The cyanocobaltate scheme of qualitative analysis Rich, Ronald
This paper presents a novel scheme of qualitative analysis for cations.
Rich, Ronald J. Chem. Educ. 1962, 39, 403.
Qualitative Analysis |
Metals |
Aqueous Solution Chemistry
|
Combining preparative and quantitative procedures in qualitative analysis Fowles, G. W. A.
Reviews some of the advantages and disadvantages of teaching qualitative analysis and offers an alternative approach.
Fowles, G. W. A. J. Chem. Educ. 1962, 39, 401.
Qualitative Analysis |
Quantitative Analysis
|
The detection of strontium and calcium Isenberg, Norbert; Collins, Carolyn J.; MacFarland, Sue A.; Strax, Polly A.
This method addresses the problem of detecting strontium and calcium in the presence of the chromate ion.
Isenberg, Norbert; Collins, Carolyn J.; MacFarland, Sue A.; Strax, Polly A. J. Chem. Educ. 1962, 39, 401.
Qualitative Analysis
|
New confirmatory tests for manganese, antimony, lead, mercury, and chromium Rich, Ronald
Presents a series of tests for confirming the presence of manganese, antimony, lead, mercury, and chromium.
Rich, Ronald J. Chem. Educ. 1962, 39, 400.
Qualitative Analysis |
Metals |
Aqueous Solution Chemistry
|
The separation and identification of cadmium and copper ions Whitehead, T. H.; Hatcher, Georgia K.
Presents a sensitive and rapid method for the separation and identification of cadmium and copper ions.
Whitehead, T. H.; Hatcher, Georgia K. J. Chem. Educ. 1962, 39, 399.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Qualitative analysis for aluminum Paul, Armine D.; Gibson, John A., Jr.
Tests for qualitatively determining the presence of Al+3, even in the presence of other metallic ions.
Paul, Armine D.; Gibson, John A., Jr. J. Chem. Educ. 1962, 39, 398.
Qualitative Analysis |
Aqueous Solution Chemistry |
Metals
|
Detection of barium, strontium, and calcium with sodium rhodizonate Chandra, Ramesh
The application of sodium rhodizonate allows the rapid detection of Group IV cations.
Chandra, Ramesh J. Chem. Educ. 1962, 39, 397.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Detection of ferrocyanide, ferricyanide, and thiocyanate Chandra, Ramesh; Sharma, S. L.
The authors present a simplified method for detecting ferrocyanide, ferricyanide, and thiocyanate in the presence of one another.
Chandra, Ramesh; Sharma, S. L. J. Chem. Educ. 1962, 39, 397.
Qualitative Analysis
|
Specific tests for cations of group II Chandra, Ramesh; Jindal, H. R.
Methods for the identification of mercury, bismuth, copper, cadmium, arsenic, antimony, and tin.
Chandra, Ramesh; Jindal, H. R. J. Chem. Educ. 1962, 39, 396.
Qualitative Analysis
|
A spot test scheme for the identification of metal ions Vavoulis, Alex
This spot test may be incorporated into a classical qualitative analysis scheme; includes methods for mercury, silver, bismuth, manganese, and zinc.
Vavoulis, Alex J. Chem. Educ. 1962, 39, 395.
Qualitative Analysis |
Metals
|
H2S equilibria: The precipitation and solubilities of metal sulfides Petrucci, Ralph H.; Moews, P. C., Jr.
It is possible to discuss all aspects of H2S and metal sulfide systems through a single mathematical relationship by using the appropriate terms in the expression.
Petrucci, Ralph H.; Moews, P. C., Jr. J. Chem. Educ. 1962, 39, 391.
Equilibrium |
Qualitative Analysis |
Metals
|
A rapid test to distinguish tertiary from primary or secondary alcohols Bordwell, Frederick C.; Wellman, Keith M.
Describes a protocol for distinguishing tertiary from primary or secondary alcohols and its application to a specific problem.
Bordwell, Frederick C.; Wellman, Keith M. J. Chem. Educ. 1962, 39, 308.
Alcohols |
Qualitative Analysis
|
Inorganic chemistry of qualitative analysis (Clifford, A. F.) Jolly, William L.
Jolly, William L. J. Chem. Educ. 1962, 39, 53.
Qualitative Analysis
|
Chemical properties and identification of ions: An introduction to semimicro qualitative analysis (Whipple, Omer K.) Summers, Donald B.
Summers, Donald B. J. Chem. Educ. 1961, 38, A920.
Qualitative Analysis |
Microscale Lab
|
Qualitative Analysis and Analytical Chemical Separations (West, Philip W.; Vick, Maurice M.) Frank, Richard E.
Frank, Richard E. J. Chem. Educ. 1961, 38, A642.
Qualitative Analysis |
Separation Science
|
Letters Archer, R. D.
The author clarifies some of the chemistry relevant to an earlier article.
Archer, R. D. J. Chem. Educ. 1961, 38, 638.
Qualitative Analysis
|
A qualitative elemental analysis system correlated with the periodic table Swift, Ernest H.; Schaefer, William P.
This article describes a new system of qualitative analysis developed especially for instructional purposes as a means of teaching descriptive inorganic chemistry and the principles of chemical reactions.
Swift, Ernest H.; Schaefer, William P. J. Chem. Educ. 1961, 38, 607.
Periodicity / Periodic Table |
Qualitative Analysis |
Descriptive Chemistry |
Reactions
|
Contemporary analysis and the chemistry curriculum Rogers, L. B.
Examines a variety of curricular issues regarding analytical chemistry.
Rogers, L. B. J. Chem. Educ. 1961, 38, 455.
Qualitative Analysis |
Qualitative Analysis |
Separation Science
|
A simple test for the detection of phosphorus in organic compounds Ketcham, Roger; Low-Beer, Anne de G.
This simple test for the detection of phosphorus in organic compounds relies on the sodium fusion procedure and filter paper moistened with silver nitrate.
Ketcham, Roger; Low-Beer, Anne de G. J. Chem. Educ. 1961, 38, 414.
Qualitative Analysis
|
A specific qualitative reagent for copper Williams, T. R.; Burton, Frederick
Suggests the use of T-sulfonamidine as a specific precipitant for the separation and confirmation of copper(II) ions.
Williams, T. R.; Burton, Frederick J. Chem. Educ. 1961, 38, 413.
Qualitative Analysis
|
Rapid detection of cations of copper group Chandra, Ramesh
Presents a procedure for the separation and detection of the ions normally present in the copper subgroup.
Chandra, Ramesh J. Chem. Educ. 1961, 38, 413.
Qualitative Analysis
|
A simple test for nitric acid fumes Chan, Alfred, Jr.
This simple test for nitric acid fumes relies on an ordinary kraft paper towel.
Chan, Alfred, Jr. J. Chem. Educ. 1961, 38, 412.
Acids / Bases |
Qualitative Analysis
|
A new qualitative reagent for aluminum Jones, C. T.; Williams, Max B.
Describes the use of arsenazo as a confirmatory test for aluminum.
Jones, C. T.; Williams, Max B. J. Chem. Educ. 1961, 38, 411.
Qualitative Analysis
|
Benzenoid nitro-compounds as organic reagents for tin(II) Burns, Robert L.; Gruen, Fred M.
Describes the results of a series of experiments involving benzenoid nitro-compounds as organic reagents for the detection of tin(II).
Burns, Robert L.; Gruen, Fred M. J. Chem. Educ. 1961, 38, 410.
Qualitative Analysis
|
Non-cyanide detection of cadmium in the presence of copper Chandra, Ramesh
Describes six novel procedures for the detection of cadmium in the presence of copper that do not rely on cyanide.
Chandra, Ramesh J. Chem. Educ. 1961, 38, 409.
Qualitative Analysis
|
Detection of phosphate in the presence of arsenate Chandra, Ramesh
Describes a procedure for the detection of phosphate in the presence of arsenate.
Chandra, Ramesh J. Chem. Educ. 1961, 38, 408.
Qualitative Analysis
|
Preparative separations replace typical qualitative analysis Mahr, Carl
Discusses the use of preparative separations in qualitative analysis.
Mahr, Carl J. Chem. Educ. 1961, 38, 407.
Separation Science |
Qualitative Analysis
|
Ion exchange paper chromatography Thomas, Alan T.; Phillips, J. P.
Describes an experiment/demonstration in ion exchange paper chromatography separating amino acids.
Thomas, Alan T.; Phillips, J. P. J. Chem. Educ. 1961, 38, 406.
Qualitative Analysis |
Ion Exchange |
Chromatography |
Separation Science |
Amino Acids
|
A paper chromatographic scheme for the identification of metallic ions Ritchie, A. S.
Presents a scheme for the identification of metallic ions through paper chromatography.
Ritchie, A. S. J. Chem. Educ. 1961, 38, 400.
Chromatography |
Metals |
Qualitative Analysis
|
Condensed Norms: ACS Cooperative Examinations
Presents norms for ACS tests in qualitative analysis and general chemistry.
J. Chem. Educ. 1961, 38, 211.
Qualitative Analysis
|
Letters Battino, Rubin
The author offers an experimental approach to qualitative analysis as an exercise in deductive reasoning.
Battino, Rubin J. Chem. Educ. 1961, 38, 102.
Qualitative Analysis
|
The detection of acetate ions in qualitative analysis Berk, Dennis; Hecker, Lawrence
A reliable test for acetate has been developed that is based on the fact that the acetate ion pyrolyzes with sodium hydroxide to form sodium carbonate.
Berk, Dennis; Hecker, Lawrence J. Chem. Educ. 1960, 37, 414.
Qualitative Analysis
|
A non-cyanide separation of copper from cadmium Waggoner, William H.
A procedure has been developed for the separation of copper from cadmium that is based on the observation that thiocyanate ion will precipitate copper but not cadmium from an acidic solution.
Waggoner, William H. J. Chem. Educ. 1960, 37, 411.
Qualitative Analysis |
Separation Science
|
Improved confirmatory test for chromium Ferrand, Edward F., Jr.
Describes an improved and sensitive confirmatory test for chromium.
Ferrand, Edward F., Jr. J. Chem. Educ. 1960, 37, 411.
Qualitative Analysis
|
A new reagent for the identification of Mg and Bi Bishop, John A.
Brominated tetraresorcinol pyromellitein can be used in the identification of magnesium and bismuth.
Bishop, John A. J. Chem. Educ. 1960, 37, 410.
Qualitative Analysis
|
A study of various methods for the analysis for Group III cations Hahn, Richard B.; Sanders, Charlie H.
Results of a study comparing three methods for separating group III ions.
Hahn, Richard B.; Sanders, Charlie H. J. Chem. Educ. 1960, 37, 408.
Qualitative Analysis |
Metals |
Separation Science
|
Semimicro analysis of alloys containing zirconium Lehrman, Leo; Dorenbush, Martin; Meisler, Natalie
Presents a procedure for determining the presence and estimating the amount of zirconium in an alloy.
Lehrman, Leo; Dorenbush, Martin; Meisler, Natalie J. Chem. Educ. 1960, 37, 407.
Qualitative Analysis |
Microscale Lab |
Metals
|
A realistic introduction to solution equilibria Ramette, Richard
This paper is concerned with a sophomore chemistry course entitled "Equilibrium."
Ramette, Richard J. Chem. Educ. 1960, 37, 344.
Equilibrium |
Solutions / Solvents |
Qualitative Analysis
|
Identification of amino acids in a protein hydrolysate by paper chromatography Clapp, L. B.; Hansch, Corwin
By varying the number of amino acids to be identified, the difficulty of this procedure can be easily controlled.
Clapp, L. B.; Hansch, Corwin J. Chem. Educ. 1960, 37, 293.
Amino Acids |
Qualitative Analysis |
Proteins / Peptides |
Chromatography
|
Quantitative analysis versus quantitative chemistry Swift, Ernest H.
Examines the historical development of quantitative analysis and quantitative chemistry and their contemporary role in the undergraduate curriculum.
Swift, Ernest H. J. Chem. Educ. 1960, 37, 283.
Qualitative Analysis |
Quantitative Analysis
|
Semimicro Experiments in General Chemistry and Qualitative Analysis (Cheronis, Nicholas D.; Stein, Herman) Williams, Theodore R.
Williams, Theodore R. J. Chem. Educ. 1960, 37, 216.
Microscale Lab |
Qualitative Analysis
|
The Fehling and Benedict tests Daniels, Ralph; Rush, Clyde C.; Bauer, Ludwig
The commonly cited interpretation of the Fehling and Benedict tests are not in accord with experimental facts.
Daniels, Ralph; Rush, Clyde C.; Bauer, Ludwig J. Chem. Educ. 1960, 37, 205.
Qualitative Analysis |
Aldehydes / Ketones
|
A separation and identification experiment for elementary organic chemistry laboratory Laughton, Paul M.
The student selects a test tube containing two unknowns and is told only that they have been selected from two of three possible groups: a primary or tertiary amine, an aldehyde or ketone, and an acid or phenol. The components are to be separated, their physical properties determined, their categories assigned, and one specific derivative prepared for each.
Laughton, Paul M. J. Chem. Educ. 1960, 37, 133.
Separation Science |
Qualitative Analysis |
Amines / Ammonium Compounds |
Aldehydes / Ketones |
Acids / Bases |
Phenols |
Physical Properties |
Synthesis
|
Letters to the editor Brescia, Frank
Presents the results of two surveys regarding the place of qualitative analysis in the chemistry curriculum.
Brescia, Frank J. Chem. Educ. 1959, 36, 416.
Qualitative Analysis
|
Toluene-3,4-dithiol and its derivatives as analytical reagents: A new approach to qualitative inorganic analysis Clark, R. E. D.; Neville, R. C.
Develops a rational basis for applying organic reagents to inorganic qualitative analysis.
Clark, R. E. D.; Neville, R. C. J. Chem. Educ. 1959, 36, 390.
Qualitative Analysis
|
Separating copper from cadmium without cyanide Sanyal, Somorendranath
The procedure here is based on the observation that CdS is soluble in hot dilute H2SO4, whereas CuS is insoluble.
Sanyal, Somorendranath J. Chem. Educ. 1959, 36, 387.
Qualitative Analysis
|
Detection of thiocyanate and dissolution of silver halides Gentil, Vicente; Caldas, Alcides
This procedure will detect the presence of 1 mg of I-, Br-, Cl-, or SCN- in any mixture containing up to 100 mg of each of the other ions.
Gentil, Vicente; Caldas, Alcides J. Chem. Educ. 1959, 36, 386.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Oxidation of hydrogen sulfide in inorganic qualitative analysis Stock, John T.; Shinozuka, Fujiko
Presents the results of an investigation into the sulfate-forming tendencies of various oxidizing agents.
Stock, John T.; Shinozuka, Fujiko J. Chem. Educ. 1959, 36, 385.
Qualitative Analysis |
Oxidation / Reduction
|
A gas testing device using liquids or test papers Williams, T. R.; Stock, John T.
This simple device facilitates the qualitative testing of gases evolved during small-scale inorganic analysis using liquids or test papers.
Williams, T. R.; Stock, John T. J. Chem. Educ. 1959, 36, 384.
Qualitative Analysis |
Gases |
Laboratory Equipment / Apparatus
|
The separation of arsenic in qualitative analysis Boyd, Clifford C.; Easley, William K.
A separation of arsenic as As(III) has been developed based upon the observation that As(III) is extracted selectively from hydrochloric acid solution of the common cations encountered in the usual qualitative analysis scheme.
Boyd, Clifford C.; Easley, William K. J. Chem. Educ. 1959, 36, 384.
Qualitative Analysis |
Separation Science
|
The preparation of barium chloranilate Thomas, E. B.
The use of barium chloranilate in the colorimetric determination of sulfate offers an effective means of introducing classes in quantitative analysis to indirect, colorimetric procedures.
Thomas, E. B. J. Chem. Educ. 1959, 36, 383.
Qualitative Analysis |
Synthesis
|
An evaluation of reagents for sulfide precipitation Page, John O.; Machel, A. R.; Ramsey, J. W.
The comparative efficiencies of four sulfide-precipitating reagents - hydrogen sulfide, ammonium hydrosulfide solution, sodium hydrosulphide solution, and triethylamine solution - are evaluated.
Page, John O.; Machel, A. R.; Ramsey, J. W. J. Chem. Educ. 1959, 36, 382.
Qualitative Analysis |
Precipitation / Solubility
|
Qualitative test for potassium using sodium tetraphenylboron Paul, Armine D.; Gibson, John A., Jr.
Sodium tetraphenylboron reacts with potassium ions to form a white insoluble compound.
Paul, Armine D.; Gibson, John A., Jr. J. Chem. Educ. 1959, 36, 380.
Qualitative Analysis
|
A spot test analysis of the group III cations Marion, Stephen P.; Zlochower, Isaac
This procedure may be used for the direct determination of the group III cations, for a quick confirmation of the results obtained in the regular scheme of analysis, or for teaching another technique in analytical chemistry.
Marion, Stephen P.; Zlochower, Isaac J. Chem. Educ. 1959, 36, 379.
Qualitative Analysis
|
Use of radioisotopes in the college chemistry laboratory Phillips, David; Maybury, Robert H.
Provides experiments and experiences working with constructed Geiger counters and radioisotopes.
Phillips, David; Maybury, Robert H. J. Chem. Educ. 1959, 36, 133.
Nuclear / Radiochemistry |
Isotopes |
Instrumental Methods |
Qualitative Analysis |
Kinetics
|
Systematic detection of anions through their parent elements Caldas, Alcides; Gentil, Vicente
Presents an analysis scheme that aims at the detection of the parent elements of the anions, no matter what their state of combination.
Caldas, Alcides; Gentil, Vicente J. Chem. Educ. 1958, 35, 545.
Qualitative Analysis |
Precipitation / Solubility |
Oxidation / Reduction |
Aqueous Solution Chemistry
|
The use of N-chlorosuccinimide for identification of bromide and iodide ions Filler, Robert
Describes the use of N-chlorosuccinimide as an oxidizing agent in preference to "chlorine water" for the identification of bromide and iodide ions.
Filler, Robert J. Chem. Educ. 1958, 35, 407.
Qualitative Analysis |
Oxidation / Reduction |
Aqueous Solution Chemistry
|
Separation of copper(II) from cadmium (II) in qualitative analysis Boyd, Clifford C.; Easley, William K.
This procedure is based on the observation that copper(II) ion is extracted selectively from solutions containing copper(II) and cadmium(II) by a solution of 8-hydroxyquinoline in chloroform.
Boyd, Clifford C.; Easley, William K. J. Chem. Educ. 1958, 35, 406.
Separation Science |
Qualitative Analysis |
Aqueous Solution Chemistry
|
A bench-scale preparation of thioacetamide O'Connor, William F.; Cogswell, George W.; Moriconi, Emil J.
The bench-scale preparation of thioacetamide presented is a modification of an earlier technique.
O'Connor, William F.; Cogswell, George W.; Moriconi, Emil J. J. Chem. Educ. 1958, 35, 405.
Synthesis |
Qualitative Analysis |
Aqueous Solution Chemistry
|
Identification of copper and cadmiumA method without the use of KCN Husted, Helen G.
In order to avoid the use of very poisonous KCN while retaining the wet basis for the analysis, the author has developed a new method for the separation and identification of copper and cadmium.
Husted, Helen G. J. Chem. Educ. 1958, 35, 403.
Qualitative Analysis |
Aqueous Solution Chemistry
|
A spot test for cadmium Petroccione, John F.
A simple but effective spot test for cadmium can be made with Titan yellow.
Petroccione, John F. J. Chem. Educ. 1958, 35, 402.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Separation of arsenic and copper in qualitative analysis Stock, John T.
Provides a procedure for the separation of arsenic and copper in qualitative analysis.
Stock, John T. J. Chem. Educ. 1958, 35, 402.
Qualitative Analysis |
Aqueous Solution Chemistry
|
The colorimetric detection of arsenic as copper arsenide Stock, John T.; Garcia, Lucinda M.
A test for detecting arsenic in the presence of antimony.
Stock, John T.; Garcia, Lucinda M. J. Chem. Educ. 1958, 35, 401.
Qualitative Analysis |
Aqueous Solution Chemistry
|
The use of "parallel samples" in qualitative analysis courses Kauffman, George B.
As an alternative to analyzing separately the known and then the unknown, as is done in some schools, the author suggests that the student analyze the known and unknown simultaneously, "in parallel."
Kauffman, George B. J. Chem. Educ. 1958, 35, 363.
Qualitative Analysis
|
A simple method for the detection of soluble bicarbonates Lahiri, Ananta Gopal
The brief notes describes a simple method for the detection of soluble bicarbonates.
Lahiri, Ananta Gopal J. Chem. Educ. 1958, 35, 298.
Qualitative Analysis
|
Qualitative identification of narcotics by spot test examination Lampe, Kenneth F.
Provides procedures for the qualitative identification of narcotics table of color reactions of narcotics in spot tests.
Lampe, Kenneth F. J. Chem. Educ. 1958, 35, 96.
Qualitative Analysis |
Drugs / Pharmaceuticals
|
The solubility product constant for copper iodate: An experiment Peterson, B. H.
Copper iodate is a salt of moderate solubility, and a titrimetric analysis of an aliquot portion of saturated solution provides the data necessary for the calculation of the solubility product.
Peterson, B. H. J. Chem. Educ. 1957, 34, 612.
Aqueous Solution Chemistry |
Solutions / Solvents |
Physical Properties |
Qualitative Analysis
|
The qualitative analysis course should teach analysis Strong, Frederick C., III
The author examines the practicality of the typical qualitative chemistry course.
Strong, Frederick C., III J. Chem. Educ. 1957, 34, 400.
Qualitative Analysis
|
Qualitative analysis and analytical chemical separations without the use of sulfides Vick, Maurice M.; West, Philip W.
The authors argue for the need of qualitative analysis, examine systems of qualitative analysis, and present a qualitative scheme that eliminates the need for sulfides.
Vick, Maurice M.; West, Philip W. J. Chem. Educ. 1957, 34, 393.
Qualitative Analysis |
Separation Science
|
What topics belong in a modern course in qualitative analysis? Gilreath, Esmarch S.
The author focuses particularly on the role of theory and aqueous solutions equilibria in the qualitative analysis course.
Gilreath, Esmarch S. J. Chem. Educ. 1957, 34, 391.
Qualitative Analysis |
Equilibrium |
Aqueous Solution Chemistry
|
History of qualitative analysis Welcher, Frank J.
The author traces the history of qualitative analysis, examining particularly the origin of microanalysis and spot tests.
Welcher, Frank J. J. Chem. Educ. 1957, 34, 389.
Qualitative Analysis |
Microscale Lab
|
Why teach qualitative analysis? Freiser, Henry
The author examines the depreciation of qualitative analysis and the need for a proper re-evaluation of the course's purpose.
Freiser, Henry J. Chem. Educ. 1957, 34, 387.
Qualitative Analysis
|
Qualitative analysisWhat, why how? A symposium Hahn, Richard B.
An introduction to a symposium examining the place, content, and methods of qualitative analysis.
Hahn, Richard B. J. Chem. Educ. 1957, 34, 387.
Qualitative Analysis
|
Identification analysis, a stimulating revival of qualitative analysis Frank, Richard E.
The author describes the process of identification analysis and provides examples of several identification analyses.
Frank, Richard E. J. Chem. Educ. 1957, 34, 383.
Qualitative Analysis
|
Microchemical apparatus: A long-term project Stock, John T.
Presents a variety of laboratory devices developed for microscale work, including heating, stirring, electrochemical, and qualitative analysis devices.
Stock, John T. J. Chem. Educ. 1957, 34, 358.
Microscale Lab |
Laboratory Equipment / Apparatus |
Qualitative Analysis |
Electrochemistry
|
Letters to the editor Shevach, Lawrence P.
The author argues that qualitative analysis should be integrated with general chemistry.
Shevach, Lawrence P. J. Chem. Educ. 1957, 34, 155.
Qualitative Analysis
|
The inclusion of tungsten and thallium in the elementary scheme of qualitative analysis Waters, K. L.; Brockman, C. J.; Waggoner, W. H.
It is the purpose of this paper to present a scheme of analysis for Group I which includes tungsten and thallium.
Waters, K. L.; Brockman, C. J.; Waggoner, W. H. J. Chem. Educ. 1957, 34, 137.
Qualitative Analysis
|
A rapid chromatographic analysis of group I cations Marion, Stephen P.; Psihas, James
This simple experiment makes use of an easy paper technique, is rapid, and requires no special apparatus or reagents.
Marion, Stephen P.; Psihas, James J. Chem. Educ. 1957, 34, 87.
Chromatography |
Qualitative Analysis
|
Qualitative analysis of alloys containing molybdenum Lehrman, Leo; Schneider, Paul
The object of this work was to develop a semimicro method of qualitative analysis for molybdenum within the framework of a scheme used for the common metals.
Lehrman, Leo; Schneider, Paul J. Chem. Educ. 1956, 33, 621.
Metals |
Qualitative Analysis
|
Gas-phase chromatography: A class experiment Brennan, Desmond; Kemball, Charles
Recommends an experimental procedure involving gas chromatography and presents the necessary apparatus.
Brennan, Desmond; Kemball, Charles J. Chem. Educ. 1956, 33, 490.
Gas Chromatography |
Separation Science |
Qualitative Analysis
|
Gas-phase chromatography Lotz, John R.; Willingham, Charles B.
Introduces gas chromatography and describes its associated apparatus and operation.
Lotz, John R.; Willingham, Charles B. J. Chem. Educ. 1956, 33, 485.
Chromatography |
Gas Chromatography |
Separation Science |
Qualitative Analysis
|
The nature of chromatography Cassidy, Harold G.
Provides a definition of chromatography and a description of gas chromatography.
Cassidy, Harold G. J. Chem. Educ. 1956, 33, 482.
Chromatography |
Separation Science |
Qualitative Analysis |
Gas Chromatography
|
Sleuthing in the chemistry laboratory: An impromptu project Johnson, Leroy D.
Students in a general organic chemistry laboratory are given unknowns that have been produced over time through various unintended interactions in the chemical stockroom.
Johnson, Leroy D. J. Chem. Educ. 1956, 33, 389.
Qualitative Analysis
|
A reduced-scale Lassaigne technique: The detection of nitrogen, sulfur, and halogens in organic compounds Stock, John T.
Presents apparatus that makes use of a reduced-scale Lassaigne technique involving fusion with metallic sodium for the detection of nitrogen, sulfur, and halogens in organic compounds.
Stock, John T. J. Chem. Educ. 1956, 33, 345.
Qualitative Analysis |
Laboratory Equipment / Apparatus
|
Principles of the systematic separation of cations Weisz, Herbert
Lays out approaches to be used in the systematic separation of cations.
Weisz, Herbert J. Chem. Educ. 1956, 33, 334.
Separation Science |
Aqueous Solution Chemistry |
Qualitative Analysis |
Metals
|
The qualitative separation and detection of zinc Wilkinson, Joseph R.; Sheleck, Edward G.; Sheline, Raymond K.
This paper investigates stages in the inorganic scheme of analysis where the zinc ion could be adsorbed on or coprecipitated with precipitates of other ions.
Wilkinson, Joseph R.; Sheleck, Edward G.; Sheline, Raymond K. J. Chem. Educ. 1955, 32, 613.
Qualitative Analysis |
Separation Science |
Precipitation / Solubility
|
A chemistry course including both qualitative and quantitative analysis McDuffie, Bruce
Describes a chemistry course and its experiments that incorporates both qualitative and quantitative analysis.
McDuffie, Bruce J. Chem. Educ. 1955, 32, 560.
Qualitative Analysis |
Quantitative Analysis
|
Thioacetamide as a source of hydrogen sulfide in qualitative analysis Lehrman, Leo
Examines the advantages and disadvantages of using a water solution of thioacetamide as a source of hydrogen sulfide to precipitate metal sulfides in qualitative analysis.
Lehrman, Leo J. Chem. Educ. 1955, 32, 474.
Amides |
Qualitative Analysis
|
Separation and detection of the aluminum ion in qualitative analysis Smith, Sterling B.; Shute, John M.
Describes a study that seeks to eliminate the interference of iron and chromium in the detection of aluminum when using the "aluminon" test.
Smith, Sterling B.; Shute, John M. J. Chem. Educ. 1955, 32, 380.
Qualitative Analysis |
Separation Science |
Aqueous Solution Chemistry
|
Trends in chemical education Currier, Arnold J.
Topics examined include chemical nomenclature, the organization of subject matter in chemistry, carbon chemistry versus qualitative analysis, the laboratory versus the textbook, and supplies in chemistry teachers.
Currier, Arnold J. J. Chem. Educ. 1955, 32, 286.
Nomenclature / Units / Symbols |
Qualitative Analysis
|
Circular-paper chromatography in qualitative analysis Surak, John G.; Martinovich, Robert J.
Describes procedures for and examples of circular-paper chromatography.
Surak, John G.; Martinovich, Robert J. J. Chem. Educ. 1955, 32, 95.
Separation Science |
Chromatography |
Qualitative Analysis
|
Aids to semimicro qualitative analysis Pantony, D. A.; Wilson, C. L.
Describes an analysis board, hanging-drop cell and hydrogen sulfide absorption apparatus, and other equipment and procedures developed for semimicro qualitative analysis.
Pantony, D. A.; Wilson, C. L. J. Chem. Educ. 1954, 31, 648.
Microscale Lab |
Qualitative Analysis
|
Multiple chromatograms for detection of amino acids in blood serum Ven Horst, Sister Helene; Carstens, Yolanda
A simple piece of equipment was constructed whereby 2 to 16 chromatograms could be run simultaneously and under identical conditions.
Ven Horst, Sister Helene; Carstens, Yolanda J. Chem. Educ. 1954, 31, 576.
Chromatography |
Amino Acids |
Qualitative Analysis |
Laboratory Equipment / Apparatus
|
A new qualitative identification procedure for cobaltous and nickelous ions Yasuda, Stanley K.; Lambert, Jack L.
The procedure and identification test described here reveals cobaltous ion alone or in the presence of much nickelous ion by selective color formation.
Yasuda, Stanley K.; Lambert, Jack L. J. Chem. Educ. 1954, 31, 572.
Qualitative Analysis
|
Qualitative analysis of alloys containing titanium and vanadium Lehrman, Leo; Moscowitz, Albert; Schmeltz, Irwin
The purpose of this paper is to develop a semimicro method of qualitative analysis for titanium and vanadium within the framework of a scheme used for the common metals.
Lehrman, Leo; Moscowitz, Albert; Schmeltz, Irwin J. Chem. Educ. 1954, 31, 310.
Metals |
Qualitative Analysis
|
Small-scale units for organic identifications Stock, John T.; Fill, M. A.
Presents a small, block-type unit that includes practically all of the apparatus required for organic identification work.
Stock, John T.; Fill, M. A. J. Chem. Educ. 1954, 31, 144.
Microscale Lab |
Qualitative Analysis
|
Chromatography as a class unit in qualitative analysis Surak, John G.; Schlueter, Donald P.
Describes procedures for the chromatographic separation and identification of cations.
Surak, John G.; Schlueter, Donald P. J. Chem. Educ. 1953, 30, 457.
Qualitative Analysis |
Chromatography |
Metals |
Aqueous Solution Chemistry
|
Demonstration of the intermediate position of cobalt between iron and nickel Goldstein, Ernst M.
The different oxidizability of ferrous, cobaltous, and nickelous hydroxides, together with increasing color deepness of the oxidation products, can be used to demonstrate that cobalt is intermediate in its properties between iron and nickel.
Goldstein, Ernst M. J. Chem. Educ. 1953, 30, 387.
Periodicity / Periodic Table |
Metals |
Oxidation / Reduction |
Atomic Properties / Structure |
Qualitative Analysis
|
The separation of calcium and strontium in semimicro qualitative analysis Hahn, Richard B.
Suggests a method for the separation of calcium and strontium in semimicro qualitative analysis that relies on 72% rather than 100% nitric acid.
Hahn, Richard B. J. Chem. Educ. 1953, 30, 349.
Metals |
Separation Science |
Qualitative Analysis
|
The identification of esters of phenols Carbone, Gabriel
The present modification is designed to better characterize esters of phenols and is based on the observations that the potassium salts of phenols are soluble in absolute alcohol wile the potassium salts of organic acids are relatively insoluble in absolute methanol.
Carbone, Gabriel J. Chem. Educ. 1953, 30, 315.
Phenols |
Esters |
Qualitative Analysis
|
Inorganic paper chromatography. II. Separation of groups III, IV, and V Surak, John G.; Leffler, Norman; Martinovich, Robert
This paper concerns itself with the separation and identification of the cations of Groups IIIa, IIIb, IV, and V.
Surak, John G.; Leffler, Norman; Martinovich, Robert J. Chem. Educ. 1953, 30, 20.
Chromatography |
Separation Science |
Qualitative Analysis
|
Modified Hinsberg procedure Ritter, Frank O.
Improves the Hinsberg method for differentiating between primary, secondary, and tertiary amines.
Ritter, Frank O. J. Chem. Educ. 1952, 29, 506.
Amines / Ammonium Compounds |
Qualitative Analysis
|
Letters Dorsey, Woodrow W.
It is in the analytical class that the student can discover if he desires to continue as a science major or to go on to some other area.
Dorsey, Woodrow W. J. Chem. Educ. 1952, 29, 473.
Qualitative Analysis |
Quantitative Analysis
|
The identification of zinc in the presence of nickel and cobalt Levine, E. M.; Krakower, Gerald
The presence of nickel and cobalt interfere with the identification of small amounts of zinc.
Levine, E. M.; Krakower, Gerald J. Chem. Educ. 1952, 29, 437.
Qualitative Analysis |
Metals
|
Chromatographic analysis for metal ions Fillinger, Harriett H.; Trafton, Lois Ann
Presents the results of research, much of it by undergraduates, regarding the analysis of the silver, copper, arsenic, zinc, aluminum, and alkaline earth groups of metallic ions.
Fillinger, Harriett H.; Trafton, Lois Ann J. Chem. Educ. 1952, 29, 285.
Qualitative Analysis |
Chromatography |
Metals |
Aqueous Solution Chemistry |
Undergraduate Research
|
The course in analytical chemistry West, Philip W.
Discusses some of the issues involved in designing a course in analytical chemistry.
West, Philip W. J. Chem. Educ. 1952, 29, 222.
Quantitative Analysis |
Qualitative Analysis
|
A qualitative test for ammonia in aqueous solution O'Neil, Richard C.; Renfrow, W. B.
The reaction between ammonia and iodine affords a reliable test for ammonia that is more convenient than the usual methods of detection.
O'Neil, Richard C.; Renfrow, W. B. J. Chem. Educ. 1952, 29, 94.
Qualitative Analysis |
Aqueous Solution Chemistry
|
Undergraduate research projects in qualitative analysis McDuffie, Bruce
Provides a list of topics for undergraduate research projects in qualitative analysis.
McDuffie, Bruce J. Chem. Educ. 1952, 29, 36.
Qualitative Analysis |
Undergraduate Research |
Aqueous Solution Chemistry
|
The detection of nitrite and sulfamate ions in qualitative analysis Brasted, Robert C.
Suggests an improved test for the nitrite ion and describes its sensitivity and the potential for interference by other ions.
Brasted, Robert C. J. Chem. Educ. 1951, 28, 592.
Qualitative Analysis |
Aqueous Solution Chemistry
|
A scheme for the qualitative identification of amino acids Dunn, Max S.; Drell, William
This scheme of analysis has been used to successfully identify seventeen of the naturally occurring amino acids distributed in mixtures containing from two to five components.
Dunn, Max S.; Drell, William J. Chem. Educ. 1951, 28, 480.
Qualitative Analysis |
Amino Acids
|
The use of fluorescence in qualitative analysis White, Charles E.
It is the purpose of this paper to show that the techniques of fluorescence are simple, that the apparatus required is inexpensive, and to outline procedures that may be used in any scheme of qualitative analysis. Specific tests for aluminum, zinc, boron, sodium, beryllium, thallium, and thorium are described.
White, Charles E. J. Chem. Educ. 1951, 28, 369.
Qualitative Analysis |
Fluorescence Spectroscopy
|
Letters Miller, S. Porter
The author defends qualitative analysis from its detractors and argues that it should not be relegated to freshman chemistry.
Miller, S. Porter J. Chem. Educ. 1951, 28, 286.
Qualitative Analysis
|
A rapid test for castor oil in soaps and lipsticks Sister M. Clarita Mangold
Makes use of sodium or potassium hydroxide to produce octyl alcohol as a rapid test for castor oil in soaps and lipsticks.
Sister M. Clarita Mangold J. Chem. Educ. 1951, 28, 266.
Qualitative Analysis
|
The use of starch-iodate paper in qualitative analysis Lundin, John A.
Describes the preparation of starch-iodate paper and its use in detecting sulfur dioxide and reducing anions.
Lundin, John A. J. Chem. Educ. 1951, 28, 122.
Qualitative Analysis |
Oxidation / Reduction
|
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