| Journal Articles: 190 results |
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Revising the ACS Guidelines for Chemistry Programs in Two-Year Colleges: Exploring Changes and Opportunities John V. Clevenger, Margaret S. Richards, and Jodi L. Wesemann
A draft of the next edition of the ACS Guidelines for Chemistry Programs in Two-Year Colleges contains guidelines designed to maximize the potential of students, faculty, and programs in two-year colleges; reflect changes in pedagogy, technology, and accountability; facilitate student transfer; and provide a more useful resource for strengthening programs.
Clevenger, John V.; Richards, Margaret S.; Wesemann, Jodi L. J. Chem. Educ. 2008, 85, 1602.
Administrative Issues |
Chromatography |
Laboratory Equipment / Apparatus |
Laboratory Management |
Nonmajor Courses |
Professional Development |
Spectroscopy |
Undergraduate Research
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Separation Anxiety: An In-Class Game Designed To Help Students Discover Chromatography Michael J. Samide
An in-class activity, designed on the basis of plate theory, allows students to physically separate coins on the basis of a provided partition coefficient. Students move coins between stationary and mobile phases to establish equilibrium conditions. The goal is to have students understand equilibration as it relates to separation, which can lead into a discussion of more complex topics.
Samide, Michael J. J. Chem. Educ. 2008, 85, 1512.
Chromatography |
Equilibrium
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If You Were a Molecule in a Chromatography Column, What Would You See? John Mattice
To visualize what takes place in a chromatography column, enlarge the molecules to human size and expand the columns to keep the ratio of size of molecule to size of column the same. Using such a model, this article explains how band broadening occurs as a result of resistance to mass transfer, multiple flow paths, and stagnant mobile phase.
Mattice, John. J. Chem. Educ. 2008, 85, 925.
Chromatography |
Gas Chromatography |
HPLC |
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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Using Laboratory Chemicals To Imitate Illicit Drugs in a Forensic Chemistry Activity Shawn Hasan, Deborah Bromfield-Lee, Maria T. Oliver-Hoyo, and Jose A. Cintron-Maldonado
This forensic chemistry activity utilizes forensic procedures (chemical spot tests and thin-layer chromatography) on laboratory chemicals that mimic actual street drugs to produce screening results similar to those for controlled substances.
Hasan, Shawn; Bromfield-Lee, Deborah; Oliver-Hoyo, Maria T.; Cintron-Maldonado, Jose A. J. Chem. Educ. 2008, 85, 813.
Applications of Chemistry |
Drugs / Pharmaceuticals |
Forensic Chemistry |
Thin Layer Chromatography
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Size Exclusion Chromatography: An Experiment for High School and Community College Chemistry and Biotechnology Laboratory Programs Linda S. Brunauer and Kathryn K. Davis
Describes an experiment in which students use column chromatography to separate and characterize biomolecules, thus expanding their exposure to chromatographic procedures beyond those more commonly employed at the secondary level (e.g., paper or thin-layer chromatography).
Brunauer, Linda S.; Davis, Kathryn K. J. Chem. Educ. 2008, 85, 683.
Biotechnology |
Chromatography |
Enzymes |
Separation Science |
Spectroscopy
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Colorful Column Chromatography: A Classroom Demonstration of a Three-Component Separation Lars V. Heumann
Describes a classroom demonstration for the separation of a ternary mixture consisting of intensely colored compounds using silica gel column chromatography.
Heumann, Lars V. J. Chem. Educ. 2008, 85, 524.
Chromatography |
Separation Science |
Thin Layer Chromatography
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Integrating Advanced High School Chemistry Research with Organic Chemistry and Instrumental Methods of Analysis Brian J. Kennedy
Describes the unique opportunities in chemistry available at a science and technology magnet high school. Students may select entry-level courses such as honors and advanced placement chemistry, take electives in organic chemistry with instrumental methods of analysis, and ultimately complete a senior chemical analysis research course.
Kennedy, Brian J. J. Chem. Educ. 2008, 85, 393.
Applications of Chemistry |
Fluorescence Spectroscopy |
Gas Chromatography |
Instrumental Methods |
IR Spectroscopy |
Quantitative Analysis |
Undergraduate Research |
UV-Vis Spectroscopy |
Student-Centered Learning
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Analysis of Peppermint Leaf and Spearmint Leaf Extracts by Thin-Layer Chromatography Libbie S. W. Pelter, Andrea Amico, Natalie Gordon, Chylah Martin, Dessalyn Sandifer, and Michael W. Pelter
In this inquiry-based activity, the usefulness of thin-layer chromatography to visualize the difference between spearmint and peppermint is explored.
Pelter, Libbie S. W.; Amico, Andrea; Gordon, Natalie; Martin, Chylah; Sandifer, Dessalyn; Pelter, Michael W. J. Chem. Educ. 2008, 85, 133.
Natural Products |
Plant Chemistry |
Thin Layer Chromatography
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The Chemistry of Paper Preservation Henry A. Carter
This article examines the applications of chemistry to paper preservation. The acid-catalyzed hydrolysis of cellulose accounts for the deterioration of paper in library books and other written records. To combat this threat to our written heritage, new permanent papers have been developed that are relatively chemically stable and undergo a very slow rate of deterioration.
Carter, Henry A. J. Chem. Educ. 2007, 84, 1937.
Acids / Bases |
Applications of Chemistry |
Aqueous Solution Chemistry |
Free Radicals |
Gas Chromatography |
HPLC |
pH |
Kinetics |
Rate Law
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Pre-Service Teacher as Researcher: The Value of Inquiry in Learning Science Janice M. Hohloch, Nathaniel Grove, and Stacey Lowery Bretz
An action research project to reform a chemistry course required of elementary and middle childhood pre-service teachers incorporated a hands-on approach to learning chemistry, modeled teaching science through inquiry, and emphasized the value of research experience.
Hohloch, Janice M.; Grove, Nathaniel; Bretz, Stacey Lowery. J. Chem. Educ. 2007, 84, 1530.
Chromatography |
Molecular Properties / Structure |
Nonmajor Courses |
Professional Development |
Undergraduate Research |
Student-Centered Learning |
Standards National / State
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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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Undergraduate Introductory Quantitative Chemistry Laboratory Course: Interdisciplinary Group Projects in Phytoremediation Debra L. Van Engelen, Steven W. Suljak, J. Patrick Hall, and Bert E. Holmes
In this interdisciplinary laboratory course, students complete semester-long projects studying soil chemistry, plant uptake of metals, and environmental issues while applying a variety of methods of chemical analysis to research in phytoremediation.
Van Engelen, Debra L.; Suljak, Steven W.; Hall, J. Patrick; Holmes, Bert E. J. Chem. Educ. 2007, 84, 128.
Chromatography |
Quantitative Analysis |
Student-Centered Learning
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Principles of Gel Permeation Chromatography: Interactive Software Guilherme Andrade Marson and Bayardo Baptista Torres
Principles of Gel Permeation Chromatography presents the principles of gel permeation chromatography (GPC) for students in introductory undergraduate courses of chemistry and biochemistry.
Marson, Guilherme Andrade; Torres, Bayardo Baptista. J. Chem. Educ. 2006, 83, 1567.
Chromatography
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A Gel Permeation Chromatography Simulator from JCE WebWare William F. Coleman and Edward W. Fedosky
Presents an interactive Flash animation designed to help students learn the basic principles of gel permeation chromatography from the Internet.
Coleman, William F.; Fedosky, Edward W. J. Chem. Educ. 2006, 83, 1567.
Chromatography
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A Better Method for Filling Pasteur Pipet Chromatography Columns Ben Ruekberg
A test tube can be used to improve the quality and ease of preparing and loading a Pasteur pipet chromatography column.
Ruekberg, Ben. J. Chem. Educ. 2006, 83, 1200.
Chromatography |
Microscale Lab |
Laboratory Equipment / Apparatus
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Enantioselective Reduction by Crude Plant Parts: Reduction of Benzofuran-2-yl Methyl Ketone with Carrot (Daucus carota) Bits Silvana Ravía, Daniela Gamenara, Valeria Schapiro, Ana Bellomo, Jorge Adum, Gustavo Seoane, and David Gonzalez
Presents the enantioselective reduction of a ketone by crude plant parts, using carrot (Daucus carota) as the reducing agent.
Ravía, Silvana; Gamenara, Daniela; Schapiro, Valeria; Bellomo, Ana; Adum, Jorge; Seoane, Gustavo; Gonzalez, David. J. Chem. Educ. 2006, 83, 1049.
Aldehydes / Ketones |
Biotechnology |
Catalysis |
Chromatography |
Green Chemistry |
Oxidation / Reduction |
Stereochemistry |
Separation Science
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Molecular Handshake: Recognition through Weak Noncovalent Interactions Parvathi S. Murthy
This article traces the development of our thinking about molecular recognition through noncovalent interactions, highlights their salient features, and suggests ways for comprehensive education on this important concept.
Murthy, Parvathi S. J. Chem. Educ. 2006, 83, 1010.
Applications of Chemistry |
Biosignaling |
Membranes |
Molecular Recognition |
Noncovalent Interactions |
Chromatography |
Molecular Properties / Structure |
Polymerization |
Reactions
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Analysis of the Thickening Agents in Automotive Greases by GC–MS David Mayotte, Craig J. Donahue, and Cheryl A. Snyder
Describes a laboratory procedure for the identification of the thickening agents in lubricating greases by GCMS.
Mayotte, David; Donahue, Craig J.; Snyder, Cheryl A. J. Chem. Educ. 2006, 83, 902.
Applications of Chemistry |
Consumer Chemistry |
Gas Chromatography |
Industrial Chemistry |
Mass Spectrometry |
Separation Science |
Fatty Acids
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4-Dimethylaminopyridine or Acid-Catalyzed Syntheses of Esters: A Comparison Annemieke W. C. van den Berg and Ulf Hanefeld
Students compare acid-catalyzed ester synthesis and the 4-dimethylaminopyridine-catalyzed reaction. Based on the outcome of the experiments, students discuss the different reaction mechanisms and reason why different products are formed.
van den Berg, Annemieke W. C.; Hanefeld, Ulf. J. Chem. Educ. 2006, 83, 292.
Acids / Bases |
Catalysis |
Chromatography |
Esters |
IR Spectroscopy |
NMR Spectroscopy |
Mass Spectrometry |
Synthesis |
Mechanisms of Reactions
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An Environmentally Focused General Chemistry Laboratory Morgan Mihok, Joseph T. Keiser, Jacqueline M. Bortiatynski, and Thomas E. Mallouk
A one-semester laboratory has been developed in which principles of general chemistry (aqueous acidbase equilibria, kinetics, thermodynamics, chromatographic separations, spectroscopy) are presented in the context of environmental aquatic chemistry.
Mihok, Morgan; Keiser, Joseph T.; Bortiatynski, Jacqueline M.; Mallouk, Thomas E. J. Chem. Educ. 2006, 83, 250.
Acids / Bases |
Chromatography |
Aqueous Solution Chemistry |
Ion Exchange |
Kinetics |
Nonmajor Courses |
Spectroscopy |
UV-Vis Spectroscopy
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Derivatization of Fullerenes: An Organic Chemistry Laboratory Charles T. Cox Jr. and Melanie M. Cooper
Presents two undergraduate organic chemistry laboratories detailing the synthesis of fullerene derivatives, using the Bingel (carbene insertion) and Prato (1,3-dipolar addition) protocols.
Cox, Charles T., Jr.; Cooper, Melanie M. J. Chem. Educ. 2006, 83, 99.
Acids / Bases |
Addition Reactions |
Chromatography |
Heterocycles |
IR Spectroscopy |
Microscale Lab |
NMR Spectroscopy |
Synthesis |
UV-Vis Spectroscopy
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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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Our Everyday Cup of Coffee: The Chemistry behind Its Magic Marino Petracco
Coffee beverages are so popular all over the world that there is hardly any need to describe them. But underlying this seemingly commonplace beverage there is a whole realm worth serious scientific study. The complexity of the raw seed matrix, made even more intricate when roasted, requires a deep understanding of its chemical nature. While coffee is not consumed for nutritional purposes, it is appreciated for its taste appeal along with its stimulating effects on mental and physical activity. The attention to quality is of paramount importance to both of these aspects to supply the customers with a pleasant and wholesome product.
Petracco, Marino. J. Chem. Educ. 2005, 82, 1161.
Colloids |
Food Science |
Natural Products |
Nutrition |
Agricultural Chemistry |
Chromatography |
Vitamins |
Consumer Chemistry
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A Small-Scale Low-Cost Gas Chromatograph Natasa Gros and Margareta Vrtacnik
A small-scale low-cost portable gas chromatograph (the total cost of the instrument is approximately $65) was developed that is suitable for hands-on learning and teaching of the basic concepts of chromatography. The portability and miniaturization were ensured by the application of a small propane/butane cylinder to supply the carrier gas and by the use of optic fibers for light transmission to the electronic unit with a photoresistor as a sensor. The instrument proved that the measurements are sufficiently detailed and reliable for the basic chromatographic concepts to be introduced through a hands-on approach.
Gros, Natasa ; Vrtacnik, Margareta. J. Chem. Educ. 2005, 82, 291.
Chromatography |
Laboratory Equipment / Apparatus |
Gas Chromatography
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Checkerboard Chromatography Charles A. Smith
This hands-on activity allows students to simulate chromatographic simulations using a grid, colored pieces of paper, and a six-sided die. Students observe the separation as it is occurring and perform experiments on flow rate, column length, and mobile phase composition.
Smith, Charles A. J. Chem. Educ. 2004, 81, 384A.
Chromatography |
Instrumental Methods |
Separation Science
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Introduction of Mass Spectrometry in a First-Semester General Chemistry Laboratory Course: Quantification of MTBE or DMSO in Water Mike Solow
An experiment has been developed to introduce first-semester general chemistry students to mass spectrometry. Students analyze water samples contaminated with a known compound, either DMSO or MTBE. Students are asked to determine the concentration of the compound in the water. In performing this experiment, students should learn (i) how the mass of an atom or molecule is determined, (ii) the effect of the presence of different isotopes on molecular mass, (iii) the role of an internal standard, and (iv) how mass spectrometry is used in answering various scientific questions.
Solow, Mike. J. Chem. Educ. 2004, 81, 1172.
Instrumental Methods |
Mass Spectrometry |
Quantitative Analysis |
Water / Water Chemistry |
Gas Chromatography
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An Improved Method for the Extraction and Thin-Layer Chromatography of Chlorophyll a and b from Spinach Hao T. Quach, Robert L. Steeper, and G. William Griffin
A direct method of extracting plant pigments from spinach leaves into a dry organic solvent is presented. This method avoids liquidliquid extractions and subsequent drying as is found in previously reported methods.
Quach, Hao T.; Steeper, Robert L.; Griffin, G. William. J. Chem. Educ. 2004, 81, 385.
Chromatography |
Natural Products |
Plant Chemistry |
Separation Science |
Thin Layer Chromatography
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Manual Microscale Column Chromatography Pressurization Apparatus Bruce W. Baldwin
Pressurization of a Pasteur pipet for microscale chromatography is simplified by connecting a 20- or 30-mL syringe to the pipet using a length of Tygon tubing. This simple system allows the student to easily dry-pack a column using common chromatography packing materials.
Baldwin, Bruce W. J. Chem. Educ. 2003, 80, 1182.
Chromatography |
Laboratory Equipment / Apparatus |
Separation Science |
Microscale Lab
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Simulating Chromatographic Separations in the Classroom Charles A. Smith and F. Warren Villaescusa
Using this classroom simulation, students develop a set of rules used to investigate the effect of flow rate, column dimension, particle size, and mobile/stationary phase affinity on chromatographic separations. While performing the simulation, the concepts of longitudinal and eddy diffusion are dramatically illustrated.
Smith, Charles A.; Villaescusa, F. Warren. J. Chem. Educ. 2003, 80, 1023.
Chromatography |
Instrumental Methods |
Separation Science
|
Laboratory Sequence in Computational Methods for Introductory Chemistry Jason A. Cody and Dawn C. Wiser
Description of a four-week laboratory sequence that exposes students to instrumentation (FT-NMR, GC) and computational chemistry.
Cody, Jason A.; Wiser, Dawn C. J. Chem. Educ. 2003, 80, 793.
Chromatography |
Computational Chemistry |
Noncovalent Interactions |
MO Theory |
Molecular Modeling |
Molecular Mechanics / Dynamics |
Molecular Properties / Structure |
NMR Spectroscopy |
Gas Chromatography
|
Simple Recipes for Prebiotic Soup: A High School or Undergraduate Chemistry Laboratory Marisol Martinez-Meeler, Nika Aljinovic, and Dorothy Swain
Replicating Stanley Miller's prebiotic soup experiment for introductory chemistry; includes experimental apparatus and analysis of the products.
Martinez-Meeler, Marisol; Aljinovic, Nika; Swain, Dorothy. J. Chem. Educ. 2003, 80, 665.
Amino Acids |
Aqueous Solution Chemistry |
Chromatography |
Electrochemistry |
Proteins / Peptides |
Synthesis |
Applications of Chemistry
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Incomplete Combustion with Candle Flames: A Guided-Inquiry Experiment in the First-Year Chemistry Lab Joseph MacNeil and Lisa Volaric
Investigating a burning candle as an introduction to incomplete combustion, thermodynamics, kinetics, and gas chromatography.
MacNeil, Joseph; Volaric, Lisa. J. Chem. Educ. 2003, 80, 302.
Chromatography |
Gases |
Reactions |
Oxidation / Reduction |
Thermodynamics |
Kinetics |
Gas Chromatography
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A General Chemistry Laboratory Theme: Spectroscopic Analysis of Aspirin Houston Byrd and Stephen E. O’Donnell
A laboratory sequence designed for introductory chemistry students that focusses on the synthesis and spectroscopic (IR and NMR) and chromatographic (HPLC) analysis of aspirin as an alternative to traditional general chemistry laboratories.
Byrd, Houston; O’Donnell, Stephen E. J. Chem. Educ. 2003, 80, 174.
Drugs / Pharmaceuticals |
Chromatography |
NMR Spectroscopy |
UV-Vis Spectroscopy |
Aromatic Compounds |
Atomic Spectroscopy |
Instrumental Methods
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A New Glow on the Chromatography of M&M Candies Kurt R. Birdwhistell and Thomas G. Spence
Examining M&M candy chromatographs under UV light to determine which components contribute to the fluorescence of some of the candies.
Birdwhistell, Kurt R.; Spence, Thomas G. J. Chem. Educ. 2002, 79, 847.
Chromatography |
Dyes / Pigments |
Fluorescence Spectroscopy |
Qualitative Analysis
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Classroom Research: GC Studies of Linoleic and Linolenic Fatty Acids Found in French Fries Janice P. Crowley, Kristen L. DeBoise, Megan R. Marshall, Hannah M. Shaffer, Sara Zafar, Kevin A. Jones, Nick R. Palko, Stephen M. Mitsch, Lindsay A. Sutton, Margaret Chang, Ilana Fromer, Jake Kraft, Jessica Meister, Amar Shah, Priscilla Tan, and James Whitchurch
Project in which students investigate the health effects of fatty acids and investigate the fatty acid content of French fries, as well as variables involved in the cooking of the fries.
Crowley, Janice P.; DeBoise, Kristen, L.; Marshall, Megan R.; Shaffer, Hannah M.; Zafar, Sara; Jones, Kevin A.; Palko, Nick R.; Mitsch, Stephen M.; Sutton, Lindsay A.; Chang, Margaret; Fromer, Ilana; Kraft, Jake; Meister, Jessica; Shah, Amar; Tan, Priscilla; Whitchurch, James. J. Chem. Educ. 2002, 79, 824.
Consumer Chemistry |
Synthesis |
Undergraduate Research |
Gas Chromatography |
Lipids |
Food Science |
Consumer Chemistry |
Applications of Chemistry |
Fatty Acids
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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
|
Chemistry, Color, and Art Mary Virginia Orna
The history and chemistry of common pigments.
Orna, Mary Virginia. J. Chem. Educ. 2001, 78, 1305.
Chromatography |
Dyes / Pigments |
Instrumental Methods |
Natural Products |
Plant Chemistry |
Applications of Chemistry
|
News from Online: Teaching with Chemical Instrumentation on the Web Thomas G. Chasteen
Variety of web-based animations on analytical instrumentation; WWW addresses for software, plug-ins, sites for images and animations, references for designing sites, and sites regarding specific analytical techniques.
Chasteen, Thomas G. J. Chem. Educ. 2001, 78, 1144.
Instrumental Methods |
Molecular Modeling |
Spectroscopy |
Chromatography |
Mass Spectrometry |
Gas Chromatography |
Fluorescence Spectroscopy
|
A Strategy for Incorporating Hands-On GC-MS into the General Chemistry Lecture and Laboratory Courses Perry C. Reeves and Kim L. Pamplin
Students use the GC-MS to obtain spectra of the various halobenzenes. This vividly illustrates the differences in isotopic distributions of the halogens and the complications these differences present in calculating molar masses of compounds. The isotopic distribution of iron is then obtained from the mass spectrum of Fe(CO)5, and the students calculate the atomic mass of iron from this data.
Reeves, Perry C.; Pamplin, Kim L. J. Chem. Educ. 2001, 78, 368.
Chromatography |
Isotopes |
Mass Spectrometry |
Gas Chromatography |
Aromatic Compounds
|
The Write Stuff: Using Paper Chromatography to Separate an Ink Mixture
Using a simple chromatographic technique, paper chromatography, to find out if ordinary black marking pens contain only black ink, or a mixture of colored dyes.
J. Chem. Educ. 2000, 77, 176A.
Chromatography |
Separation Science
|
Identification of Pharmaceuticals via Computer-Aided Thin Layer Chromatography Anthony J. Macherone Jr. and Theodore J. Siek
This analytical laboratory experiment demonstrates the methodology of TLC in its relation to toxicology and forensic chemistry. It is easily adapted for high school seniors or undergraduates and employs experimental techniques associated with TLC and post-lab data analysis with concomitant introduction of concepts.
Macherone, Anthony J., Jr.; Siek, Theodore J. J. Chem. Educ. 2000, 77, 366.
Forensic Chemistry |
Drugs / Pharmaceuticals |
Toxicology |
Thin Layer Chromatography |
Separation Science
|
An Inexpensive Commercially Available Analog-to-Digital Converter Gary W. Breton
The use of an inexpensive analog-to-digital converter for interfacing gas chromatographs to computers in a teaching laboratory environment is described. Raw data may be read, processed, and printed from software supplied with the converter to afford chromatograms of acceptable quality.
Breton, Gary W. J. Chem. Educ. 2000, 77, 262.
Instrumental Methods |
Laboratory Computing / Interfacing |
Laboratory Equipment / Apparatus |
Chromatography
|
Chemistry of the Heaviest Elements-One Atom at a Time Darleane C. Hoffman and Diana M. Lee
A 75-year perspective of the chemistry of the heaviest elements, including a 50-year retrospective view of past developments, a summary of current research achievements and applications, and some predictions about exciting, new developments that might be envisioned within the next 25 years.
Hoffman, Darleane C.; Lee, Diana M. J. Chem. Educ. 1999, 76, 331.
Chromatography |
Instrumental Methods |
Isotopes |
Nuclear / Radiochemistry |
Separation Science |
Descriptive Chemistry |
Enrichment / Review Materials |
Atomic Properties / Structure
|
Student Understanding of Chromatography: A Hands-On Approach Robert D. Curtright, Randy Emry, and John Markwell*
This exercise sets up a collaborative activity that challenges students to develop a chromatographic solvent with the appropriate polarity to separate leaf chlorophyll and anthocyanin pigments by TLC. The suggested activity has been tested with both high-school advanced-chemistry students and with undergraduate students in an introductory biochemistry class.
Curtright, Robert D.; Emry, Randy; Markwell, John. J. Chem. Educ. 1999, 76, 249.
Chromatography |
Natural Products |
Separation Science |
Undergraduate Research |
Thin Layer Chromatography
|
Chromatography Celestyn M. Brozek
The article describes an analogy between paper chromatography and the separation of rocks and wood pieces by the flowing stream. This analogy can be used to explain chromatography experiments in the introductory chemistry courses.
Brozek, Celestyn M. J. Chem. Educ. 1999, 76, 83.
Chromatography
|
A Simplified Method for the Microscale Extraction of Pigments from Spinach Kimberley R. Cousins and Kathleen M. Pierson
A method is presented for microscale sample preparation for the thin-layer chromatographic analysis of the pigments in spinach. A commercial vegetable juicer is used for the initial extraction from spinach. This is followed by filtration, liquid/liquid extraction, centrifugation, and evaporation.
Cousins, Kimberley R.; Pierson, Kathleen M. J. Chem. Educ. 1998, 75, 1268.
Chromatography |
Microscale Lab |
Plant Chemistry |
Dyes / Pigments |
Thin Layer Chromatography |
Separation Science
|
Chromatographic Separation Techniques for Undergraduates Darwin B. Dahl, John T. Riley, and Thomas K. Green
Over the past several years the Chemistry Department at Western Kentucky University (WKU) has sought to strengthen its undergraduate program departmental through acquisition of FT-NMR, fluorescence, electrochemical, thermal analysis, laser Raman, microscale organic, and polymer laboratory instrumentation; this has enabled the department to build a successful undergraduate program.
Dahl, Darwin B.; Riley, John T.; Green, Thomas K. J. Chem. Educ. 1998, 75, 1209.
Separation Science |
Chromatography |
Fourier Transform Techniques |
NMR Spectroscopy |
Raman Spectroscopy |
Electrochemistry |
Photochemistry |
Thermal Analysis |
Microscale Lab
|
An Inexpensive Detector for Gas Chromatography Allan L. Smith, Edward J. Thorne, and Wolfgang Nadler
We have developed a low-cost (parts cost approximately $70) detector that can be used in a freshman level class to demonstrate the fundamental principles of gas chromatography (GC). The detector box can be used in a modification of experiments available in the literature which do not enable a quantitative method of analysis. We have used it with success in a freshman class of approximately 450 students in an experiment to separate chlorinated hydrocarbons via GC.
Smith, Allan L.; Thorne, Edward J.; Nadler, Wolfgang. J. Chem. Educ. 1998, 75, 1129.
Laboratory Equipment / Apparatus |
Gas Chromatography |
Separation Science
|
Intermolecular Forces in Introductory Chemistry Studied by Gas Chromatography, Computer Models, and Viscometry Jonathan C. Wedvik, Charity McManaman, Janet S. Anderson, and Mary K. Carroll
Students performing gas chromatographic (GC) analyses of mixtures of n-alkanes and samples that simulate crime scene evidence discover that liquid mixtures can be separated rapidly into their components based upon intermolecular forces. Each group of students is given a liquid sample that simulates one collected at an arson scene, and the group is required to determine the identity of the accelerant. Students also examine computer models to better visualize how molecular structure affects intermolecular forces: London forces, dipole-dipole interactions, and hydrogen bonding.
Wedvik, Jonathan C.; McManaman, Charity; Anderson, Janet S.; Carroll, Mary K. J. Chem. Educ. 1998, 75, 885.
Theoretical Chemistry |
Chromatography |
Noncovalent Interactions |
Gas Chromatography |
Molecular Modeling |
Forensic Chemistry |
Alkanes / Cycloalkanes |
Hydrogen Bonding |
Molecular Properties / Structure
|
Basic Laboratory Chemistry reviewed by Deborah McCool
Basic Laboratory Chemistry is a series of sixteen programs presenting demonstrations of many processes and experimental techniques used in the chemistry laboratory in both macroscale and microscale. Topics included in the programs are assembling macroscale and microscale apparatus, spectroscopy, chromatography, and procedures such as filtration, extraction, distillation, and titration.
McCool, Deborah. J. Chem. Educ. 1998, 75, 830.
Microscale Lab |
Spectroscopy |
Chromatography |
Separation Science |
Titration / Volumetric Analysis
|
A General Chemistry Experiment Incorporating Synthesis and Structural Determination Hal Van Ryswyk
An experiment for the general chemistry laboratory is described wherein gas chromatography-mass spectroscopy (GC-MS) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) are used to characterize the products of a series of microscale reactions on vanillin.
Van Ryswyk, Hal. J. Chem. Educ. 1997, 74, 842.
Instrumental Methods |
Microscale Lab |
Synthesis |
Molecular Properties / Structure |
Gas Chromatography |
Mass Spectrometry |
Fourier Transform Techniques |
Spectroscopy
|
Analysis of Mouthwash Eleanor Siegrist and Guy Anderson
Students analyze commercial mouthwash solutions in order to identify the dyes which are present and determine the alcohol content.
Siegrist, Eleanor ; Anderson, Guy. J. Chem. Educ. 1997, 74, 567.
Consumer Chemistry |
Chromatography |
UV-Vis Spectroscopy |
Instrumental Methods |
Dyes / Pigments
|
Extraction, Isolation, and Characterization of Fullerene C60: A Safe and Reliable Separation Experiment Jamey L. Anderson, Michele A. West, Christopher S. Foote
Appropriate for an advanced high school or introductory college chemistry laboratory, the experiment described here allows students to safely perform organic chemistry techniques in the absence of a fume hood.
Anderson, Jamey L.; West, Michele A.; Foote, Christopher S. J. Chem. Educ. 1997, 74, 311.
Separation Science |
Chromatography
|
An Empirical Formula from Ion Exchange Chromatography and Colorimetry Steven D. Johnson
Experimental determination of the empirical formula for sodium salicylate, Nax(C7H5O3)y, using colorimetry and cation exchange. The procedure is involved, yet has been conducted by high school chemistry students as a lab final.
Johnson, Steven D. J. Chem. Educ. 1996, 73, 1179.
Chromatography |
Ion Exchange
|
Thin-Layer Chromatography: Four Simple Activities for Undergraduate Students Jamil Anwar, Saeed Ahmad Nagra, Mehnaz Nagi
To simplify the conventional thin-layer chromatography, four TLC exercises are described which are easy to perform in a high school or college laboratory.
Anwar, Jamil; Nagra, Saeed Ahmad; Nagi, Mehnaz. J. Chem. Educ. 1996, 73, 977.
Separation Science |
Laboratory Equipment / Apparatus |
Thin Layer Chromatography
|
Thin-Layer Chromatography Experiments That Illustrate General Problems in Chromatography M. Lederer, E. Leipzig-Pagani
A number of chromatography experiments using cellulose thin layers and aqueous eluents are proposed to illustrate how chromatography can be used for "pattern recognition" of the inks of felt-tip pens, the principle of displacement chromatography of the constituents of the antiseptic Mercurochrome, salting-out chromatography for the separation of halides, and the impossibility to use chromatography alone as a method of identification.
Lederer, M.; Leipzig-Pagani, E. J. Chem. Educ. 1996, 73, 974.
Chromatography |
Dyes / Pigments |
Thin Layer Chromatography |
Separation Science
|
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
|
Experiments for Modern Introductory Chemistry: Identification of Arson Accelerants by Gas Chromatography Dianne M. Elderd, Nicholas K. Kildahl, and Ladislav H. Berka
An experiment is described in which students use headspace gas chromatography to isolate and identify arson accelerants using both liquid and char samples.
Dianne M. Elderd, Nicholas K. Kildahl, and Ladislav H. Berka. J. Chem. Educ. 1996, 73, 675.
Forensic Chemistry |
Gas Chromatography |
Laboratory Computing / Interfacing
|
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
|
Use of Gas Chromatography-Mass Spectrometry (GC-MS) in Nonscience Major Course Laboratory Experiments Keith S. Kostecka, Zafra M. Lerman, and Sanford A. Angelos
Our efforts have centered on introducing prospective science communicators (film, video, radio, television, and journalism majors) to science relative to their majors and personal interests. Quality lecture-discussion topics, "mystery"-based laboratory activities have assisted in introducing and/or explaining specific areas of chemistry that attempt to reduce fear of subject matter.
Keith S. Kostecka, Zafra M. Lerman, and Sanford A. Angelos. J. Chem. Educ. 1996, 73, 565.
Nonmajor Courses |
Gas Chromatography |
Mass Spectrometry |
Chromatography |
Forensic Chemistry |
Separation Science
|
Determination of Polychlorinated Biphenyls (PCBs) in River and Bay Sediments: An Undergraduate Laboratory Experiment in Environmental Chemistry Using Capillary Gas Chromatography with Electron Capture Detection Susan E. Kegley, Kristen J. Hansen, and Kevin L. Cunningham
This paper briefly discusses the history of PCB use and provides guidelines for finding and evaluating PCB-contaminated sites as a way to interest students by showing them an application of chemistry to the "real world."
Kegley, Susan E.; Hansen, Kristen J.; Cunningham, Kevin L. J. Chem. Educ. 1996, 73, 558.
Water / Water Chemistry |
Gas Chromatography |
Applications of Chemistry |
Separation Science |
Solutions / Solvents
|
Anthocyanins: Model Compounds for Learning about More than pH Robert Curtright, James A. Rynearson, and John Markwell
In recent years it has become common to use anthocyanins as pH indicators. We believe that chemistry teachers can capitalize further on the natural interest of students in anthocyanin pigments to design meaningful lessons involving chromatography and hydrolysis. This article focuses on the use of anthocyanins in chromatography and hydrolysis.
Curtright, Robert; Rynearson, James A.; Markwell, John. J. Chem. Educ. 1996, 73, 306.
Natural Products |
Chromatography |
Reactions |
Food Science
|
TLC Developing Chamber for Screening Column Chromatography Fractions Samuel G. Levine
We describe here a novel TLC (thin layer chromatography) development chamber that greatly enhances the efficiency of this task.
Levine, Samuel G. J. Chem. Educ. 1996, 73, 77.
Thin Layer Chromatography |
Laboratory Equipment / Apparatus
|
A Simple, Discovery-Based Laboratory Exercise: The Molecular Mass Determination of Polystyrene Greg A. Slough
Identification of an unknown polymer using silica gel TLC sheets and IR spectroscopy.
Slough, Greg A. J. Chem. Educ. 1995, 72, 1031.
Stoichiometry |
IR Spectroscopy |
Molecular Properties / Structure |
Thin Layer Chromatography
|
Crepe Paper Colorimetry David L. Pringle, Kathy Chaloupka, and Maryann Varanka-Martin
Three simple experiments to introduce the subject and techniques of colorimetry, including verification of Beer's law.
Pringle, David L.; Chaloupka, Kathy; Varanka-Martin, Maryann. J. Chem. Educ. 1995, 72, 722.
Chromatography
|
Experiments for Modern Introductory Chemistry: The Temperature Dependence of Vapor Pressure Kildahl, Nicholas; Berka, Ladislav H.
Gas chromatography experiment that allows the discovery of the temperature dependence of the vapor pressure of a pure liquid; includes sample data and analysis.
Kildahl, Nicholas; Berka, Ladislav H. J. Chem. Educ. 1995, 72, 258.
Gases |
Liquids |
Gas Chromatography
|
Put the Body to Them! Perkins, Robert R.
Examples of chemistry demonstrations involving student participation, including quantized states and systems, boiling point trends, intermolecular vs. intramolecular changes, polar/nonpolar molecules, enantiomers and diastereomers, and chromatography.
Perkins, Robert R. J. Chem. Educ. 1995, 72, 151.
Chromatography |
Physical Properties |
Phases / Phase Transitions / Diagrams |
Molecular Properties / Structure |
Chirality / Optical Activity |
Quantum Chemistry |
Diastereomers |
Enantiomers
|
The ABC's of Chromatography: A Colorful Demonstration. Reynolds, Robert C.; Comber, Robert N.
This demonstration involves the separation of combinations of seven highly colored dyes by thin layer chromatography to help explain separation science while capturing the attention of the audience by spelling words with these dyes.
Reynolds, Robert C.; Comber, Robert N. J. Chem. Educ. 1994, 71, 1075.
Thin Layer Chromatography |
Dyes / Pigments |
Separation Science
|
A Simple-to-Build Thermal-Conductivity GC Detector Jones, Mark E.
The author describes an inexpensive, easy-to-build thermal-conductivity detector for gas chromatography.
Jones, Mark E. J. Chem. Educ. 1994, 71, 995.
Gas Chromatography |
Laboratory Equipment / Apparatus
|
Experiments for Modern Introductory Chemistry: Intermolecular Forces and Raoult's Law Berka, Ladislav H.; Kildahl, Nicholas
Procedure that illustrates the liquid-vapor phase equilibrium of ideal and nonideal solutions.
Berka, Ladislav H.; Kildahl, Nicholas J. Chem. Educ. 1994, 71, 613.
Noncovalent Interactions |
Gas Chromatography |
Gases |
Liquids |
Equilibrium |
Solutions / Solvents
|
Chromatographic Separation of Plant Pigments Using Sand as the Adsorbant: An Inexpensive Chromatographic Technique Lalitha, Nagubandi
Separating grass pigments using sand as the adsorbant.
Lalitha, Nagubandi J. Chem. Educ. 1994, 71, 432.
Plant Chemistry |
Dyes / Pigments |
Chromatography |
Separation Science
|
Experiments for modern introductory chemistry: Analysis of mixtures using gas chromatography and the discovery approach Burns, Douglas S.; Berka, Ladislav H.; Kildahl, Nicholas
Description of an experiment that uses both modern instrumentation and the discovery approach to learning with an introductory chemistry lab.
Burns, Douglas S.; Berka, Ladislav H.; Kildahl, Nicholas J. Chem. Educ. 1993, 70, A100.
Gas Chromatography |
TA Training / Orientation |
Learning Theories
|
Determination of sugars in food products: Using HPLC and electrochemical detection at a Cu electrode Luo, Peifang; Luo, Matthew Z.; Baldwin, Richard P.
This lab activity takes advantage of the fact that students' interest in a lab is increased when common life experiences are drawn upon.
Luo, Peifang; Luo, Matthew Z.; Baldwin, Richard P. J. Chem. Educ. 1993, 70, 679.
Chromatography |
Applications of Chemistry |
Food Science |
Instrumental Methods |
Solutions / Solvents
|
Using cation-exchange resins in two experiments for the freshman laboratory Purcell, William L.
A description of two experiments designed for the freshman laboratory to minimize exposure to dangerous chemicals and minimize cost.
Purcell, William L. J. Chem. Educ. 1993, 70, 590.
Chromatography
|
Extraction of FD&C dyes from common food sources: Their separation utilizing column chromatography Bird, E. W.; Sturtevant, Floyd
A simple procedure for the extraction and separation of five FD&C food dyes from a variety of commercial food mixtures using a low pressure column chromatography apparatus.
Bird, E. W.; Sturtevant, Floyd J. Chem. Educ. 1992, 69, 996.
Chromatography |
Separation Science
|
Combined ascending-descending paper chromatography McCullough, Thomas; Rocabado, Walter
A modification of paper chromatography that includes both ascending and descending flow using readily available equipment.
McCullough, Thomas; Rocabado, Walter J. Chem. Educ. 1992, 69, 995.
Chromatography |
Separation Science
|
Size-exclusion chromatography: Separating large molecules from small McLoughlin, Daniel J.
Description, theory, demonstration, and experimental procedure regarding size-exclusion chromatography.
McLoughlin, Daniel J. J. Chem. Educ. 1992, 69, 993.
Chromatography |
Separation Science
|
Separation science and chromatography: A colorful introduction Wigman, Larry S.; Kelsch, Catherine T.
Two-dye separation experiments (extraction and column chromatography) to introduce the concepts of phases, partitioning, equilibrium, plate height, and resolution.
Wigman, Larry S.; Kelsch, Catherine T. J. Chem. Educ. 1992, 69, 991.
Chromatography |
Separation Science |
Gas Chromatography |
Dyes / Pigments
|
A thin-layer and column chromatography experiment adapted for use in secondary schools: A quick, safe, colorful, convenient introduction to two basic techniques Reynolds, Ronald C.; O'Dell, C. Allen
Two quick, safe, and convenient procedures for thin-layer and column chromatography appropriate for the high school classroom.
Reynolds, Ronald C.; O'Dell, C. Allen J. Chem. Educ. 1992, 69, 989.
Chromatography |
Thin Layer Chromatography |
Separation Science |
Dyes / Pigments
|
Chromatography of M&M candies Kandel, Marjorie
Paper chromatography separation to detect the presence of yellow #5 (tartrazine) in M&M candies.
Kandel, Marjorie J. Chem. Educ. 1992, 69, 988.
Chromatography |
Separation Science |
Consumer Chemistry |
Dyes / Pigments
|
Supermarket column chromatography of leaf pigments Kimbrough, Doris R.
Simple and effective method of column chromatography of leaf pigments using chemicals and equipment that can be purchased at most grocery, hardware, and/or drugstores.
Kimbrough, Doris R. J. Chem. Educ. 1992, 69, 987.
Chromatography |
Separation Science |
Plant Chemistry |
Dyes / Pigments
|
Making radial chromatography creative chromatography: For fun flowers on fabrics Becker, Robert; Ihde, John; Cox, Kersti; Sarquis, Jerry L.
Doing chromatographic separations on T-shirts and creating flower patterns on filter paper.
Becker, Robert; Ihde, John; Cox, Kersti; Sarquis, Jerry L. J. Chem. Educ. 1992, 69, 979.
Chromatography |
Separation Science
|
T-shirt chromatography: A chromatogram you can wear Buccigross, Jeanne M.
Two methods for producing T-shirt chromatograms.
Buccigross, Jeanne M. J. Chem. Educ. 1992, 69, 977.
Chromatography |
Separation Science
|
An inexpensive flash chromatography apparatus for the teaching/research lab Deal, S. Todd
The author has developed an alternative flash chromatography apparatus for use in research labs at all levels, as well as the undergraduate teaching lab, that uses materials already available in a typical academic laboratory.
Deal, S. Todd J. Chem. Educ. 1992, 69, 939.
Chromatography |
Laboratory Equipment / Apparatus
|
Constructing a complete temperature-composition diagram for a binary mixture: A new experiment that uses quantitative gas chromatography. Cheng, Ru-Jen; Hsu, Chih-Li; Tsai, Yu-Fang.
Experiment to help students appreciate fractional distillation and a fundamental application of gas chromatography.
Cheng, Ru-Jen; Hsu, Chih-Li; Tsai, Yu-Fang. J. Chem. Educ. 1992, 69, 581.
Gas Chromatography |
Separation Science
|
A sensual separation science experiment: Solvent extraction and chromatographic separation of menthol utilizing various consumer products Furton, Kenneth G.; Perez, Maria I.
Evaluation of the utility of all the commercially available laundry detergents as general purpose column packing for chromatography.
Furton, Kenneth G.; Perez, Maria I. J. Chem. Educ. 1991, 68, 946.
Consumer Chemistry |
Gas Chromatography |
Separation Science |
Surface Science
|
A chemistry whodunit: Forensic examination of pen inks Quigley, Michael N.; Qi, Hongyan
Forensic chemistry activity involving pen ink and chromatography.
Quigley, Michael N.; Qi, Hongyan J. Chem. Educ. 1991, 68, 596.
Forensic Chemistry |
Applications of Chemistry |
Chromatography
|
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
|
Amino acid chromatography: The "best" technique for student labs Helser, Terry L.
Comparisons of linear, conical, and circular chromatograms, as well as media and elutants.
Helser, Terry L. J. Chem. Educ. 1990, 67, 964.
Amino Acids |
Chromatography |
Separation Science
|
A simple computerized gas chromatograph Fox, John N.; Shaner, Robert A.
Transforming an Apple computer into a versatile gas chromatograph.
Fox, John N.; Shaner, Robert A. J. Chem. Educ. 1990, 67, 694.
Laboratory Equipment / Apparatus |
Laboratory Computing / Interfacing |
Gas Chromatography |
Separation Science
|
Magic sand: Modeling the hydrophobic effect and reversed-phase liquid chromatography Vitz, Ed
The procedures described here are meant to reveal the important "nonsolvent" properties of water through its interaction with Magic Sand, and other synthetic silica derivatives.
Vitz, Ed J. Chem. Educ. 1990, 67, 512.
Chromatography |
Water / Water Chemistry
|
Fiber identification: A colorful experiment for all ages Allan, Jean
The fiber identification technique described in this manuscript provides a simple and safe preliminary test that can be carried out at any level.
Allan, Jean J. Chem. Educ. 1990, 67, 256.
Dyes / Pigments |
Chromatography
|
Conical thin-layer chromatography Heinzen, Horacio; Ferreira, Fernando; Vazquez, Alvaro; Moyna, Patrick
The use of common funnels makes it possible to run thin layer chromatography's (TLC's) with tridimensional characteristics using the same stationary phases, solvent systems, and detection methods as in planar TLC.
Heinzen, Horacio; Ferreira, Fernando; Vazquez, Alvaro; Moyna, Patrick J. Chem. Educ. 1990, 67, 167.
Thin Layer Chromatography
|
Identification of polymers in university class experiments Bowen, Humphry J. M.
With a certain amount of skill and experience, most students can learn how to identify common polymers.
Bowen, Humphry J. M. J. Chem. Educ. 1990, 67, 75.
Physical Properties |
Spectroscopy |
Chromatography
|
The analysis of ball-point inks for forensic purposes Breedlove, C. H.
The purpose of this paper is to describe the typical steps used in the analysis of ball point ink.
Breedlove, C. H. J. Chem. Educ. 1989, 66, 170.
Forensic Chemistry |
Thin Layer Chromatography
|
The separation of cobalt from nickel by anion exchange chromatography Kauffman, George B.; Adams, Matthew L.
The authors have modified other experiments, using "macro" amounts of ions, and have determined the optimum conditions to produce a visually observable demonstration that illustrates several fundamental principles of the general chemistry course.
Kauffman, George B.; Adams, Matthew L. J. Chem. Educ. 1989, 66, 166.
Chromatography |
Separation Science |
Ion Exchange
|
Electrolytic migration of ions Llorens-Molina, Juan A.
This demonstration uses a thin layer of gelatin in place of the usual filter paper so that the migration can be viewed using an overhead projector.
Llorens-Molina, Juan A. J. Chem. Educ. 1988, 65, 1090.
Noncovalent Interactions |
Ion Exchange |
Electrochemistry |
Thin Layer Chromatography
|
An integrated first-year laboratory experiment involving synthesis, spectroscopy, and chromatography of metal acetylacetonates Glidewell, Christopher; McKenchnic, James S.
This article presents a comprehensive experiment, involving synthesis, thin-layer chromatography, interpretation of two types of NMR and mass spectra.
Glidewell, Christopher; McKenchnic, James S. J. Chem. Educ. 1988, 65, 1015.
NMR Spectroscopy |
Mass Spectrometry |
Synthesis |
Separation Science |
Thin Layer Chromatography
|
A simple method for purifying silica gel for column chromatography Guarconi, Antonio E.; Ferreira, Victor F.
A quick and efficient way to get maximum use out of silica gel.
Guarconi, Antonio E.; Ferreira, Victor F. J. Chem. Educ. 1988, 65, 891.
Laboratory Equipment / Apparatus |
Laboratory Management |
Chromatography |
Separation Science
|
Nuclear waste glass, and the Fe2+/Fe3+ ratio Fanning, James C.; Hunter, R. Todd
These authors present a chemical problem of current interest that can be used for pedagogical purposes.
Fanning, James C.; Hunter, R. Todd J. Chem. Educ. 1988, 65, 888.
Applications of Chemistry |
Consumer Chemistry |
Titration / Volumetric Analysis |
Oxidation State |
Nuclear / Radiochemistry |
Green Chemistry |
Chromatography |
Spectroscopy
|
An inexpensive way to do flash chromatography Jacobson, Barry M.
While flash chromatography is desirable for teaching labs, the initial setup cost is quite high. This author provides some alternatives.
Jacobson, Barry M. J. Chem. Educ. 1988, 65, 459.
Chromatography
|
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
|
The effect of pH and chloride ion concentration on the mobilities of various cations in soil Brown, Melody; Sutherland, Mary; Leharne, Stephen
Measuring the mobilities of cations (particularly of toxic metals) in soils using soil thin layer chromatography.
Brown, Melody; Sutherland, Mary; Leharne, Stephen J. Chem. Educ. 1987, 64, 448.
pH |
Agricultural Chemistry |
Metals |
Thin Layer Chromatography
|
Macro chromatography Habich, A.; Hausermann, H. R.
Some principles of chromatography can easily be illustrated on a macroscopic scale by a simple demonstration model.
Habich, A.; Hausermann, H. R. J. Chem. Educ. 1986, 63, 715.
Chromatography
|
Thin-layer chromatographic separation of phenols Kurth, Mark J.
The structural complexity of typical TLC experiments precludes meaningful discussions of important aspects of TLC.
Kurth, Mark J. J. Chem. Educ. 1986, 63, 360.
Thin Layer Chromatography |
Phenols
|
Countercurrent extraction of ink: A demonstration of the chromatographic mechanism Bricker, Clark E.; Sloop, Gregory T.
A simple system that can demonstrate the significance of discontinuous countercurrent extraction.
Bricker, Clark E.; Sloop, Gregory T. J. Chem. Educ. 1985, 62, 1109.
Separation Science |
Chromatography
|
An inexpensive developing chamber for radial chromatography Gadwood, Robert C.
Design and advantages of a radial chromatography chamber.
Gadwood, Robert C. J. Chem. Educ. 1985, 62, 820.
Laboratory Equipment / Apparatus |
Chromatography |
Separation Science
|
Reverse-phase separation of FD & C dyes using a solvent gradient Ondrus, Martin G.
An impressive separation of FD&C dyes in aqueous solution can be demonstrated with a C18 Sep Pak and a 10-mL disposable syringe.
Ondrus, Martin G. J. Chem. Educ. 1985, 62, 798.
Dyes / Pigments |
Separation Science |
Chromatography
|
Gel filtration - An innovative separation technique Blumenfeld, Fred; Gardner, James
Discusses the theory behind gel filtration and a procedure for using this method for separating organic and inorganic molecules.
Blumenfeld, Fred; Gardner, James J. Chem. Educ. 1985, 62, 715.
Separation Science |
Chromatography
|
Synthesis and a simple molecular weight determination of polystyrene Armstrong, Daniel W.; Marx, John N.; Kyle, Don; Alak, Ala
Procedure for synthesizing styrene and determining its molecular weight using thin layer chromatography.
Armstrong, Daniel W.; Marx, John N.; Kyle, Don; Alak, Ala J. Chem. Educ. 1985, 62, 705.
Synthesis |
Polymerization |
Chromatography
|
An inexpensive and quick method for demonstrating column chromatography of plant pigments of spinach extract Mewaldt, William; Rodolph, Dawn; Sady, Michael
Constructing a simple column chromatograph from a disposable pipet.
Mewaldt, William; Rodolph, Dawn; Sady, Michael J. Chem. Educ. 1985, 62, 530.
Chromatography |
Dyes / Pigments |
Separation Science
|
A science fair display of chromatography of inks Breneman, G. L.; Parker, O. J.
60. Bits and pieces, 23. Solving a chromatography mystery simulated on an Apple II.
Breneman, G. L.; Parker, O. J. J. Chem. Educ. 1985, 62, 410.
Chromatography |
Separation Science |
Dyes / Pigments
|
Separation and identification of commonly used drugs: A thin-layer chromatography experiment for freshman chemistry Bonicamp, Judith M.
Using a simplified and accelerated TLC kit for drug detection.
Bonicamp, Judith M. J. Chem. Educ. 1985, 62, 160.
Separation Science |
Thin Layer Chromatography |
Drugs / Pharmaceuticals
|
An improved method for visualizing TLC plates using iodine Roberbon, John
Mixing iodine with silica gel and pouring it onto a thin layer chromatography plate for faster visualization.
Roberbon, John J. Chem. Educ. 1985, 62, 156.
Thin Layer Chromatography |
Laboratory Management |
Separation Science
|
Chromatography: Use of a microcomputer to introduce laboratory techniques Holdsworth, David K.
54. Bits and pieces, 21. Program to introduce paper, thin-layer, column, and gas-liquid chromatography.
Holdsworth, David K. J. Chem. Educ. 1984, 61, 790.
Chromatography |
Separation Science |
Thin Layer Chromatography
|
An inexpensive experiment for the introduction of high performance liquid chromatography Bidlingmeyer, Brian A.; Warren, F. Vincent, Jr.
Separates the food dyes found in grape-flavored Kool-Aid using isocratic and gradient solution methods. [Debut]
Bidlingmeyer, Brian A.; Warren, F. Vincent, Jr. J. Chem. Educ. 1984, 61, 716.
Chromatography |
HPLC |
Separation Science |
Dyes / Pigments
|
Chlorophyll separation and spectral identification Diehl-Jones, Susan M.
Extracting chlorophyl a and b from spinach and separating them using thin-layer and column chromatography.
Diehl-Jones, Susan M. J. Chem. Educ. 1984, 61, 454.
Separation Science |
Spectroscopy |
Plant Chemistry |
Photosynthesis |
Dyes / Pigments |
Thin Layer Chromatography |
Chromatography
|
A quantitative gas chromatographic ethanol determination: a contemporary analytical experiment Leary, James J.
This note describes a gas chromatographic experiment for the quantitative determination of volume percent ethanol in water ethanol solutions.
Leary, James J. J. Chem. Educ. 1983, 60, 675.
Gas Chromatography |
Quantitative Analysis |
Water / Water Chemistry |
Alcohols
|
An improvement for chromatography Chiong, Hung-Cheh; Wang, Pei-Lin
A simpler setup for conducting chromatography experiments with colorless liquids.
Chiong, Hung-Cheh; Wang, Pei-Lin J. Chem. Educ. 1983, 60, 419.
Chromatography |
Liquids |
Laboratory Equipment / Apparatus
|
Identification of unknown black inks by thin-layer chromatography Olesen, B.; Hopson, D.
A quick lab that will introduce students to TLC while demonstrating different properties and components of pen ink.
Olesen, B.; Hopson, D. J. Chem. Educ. 1983, 60, 232.
Thin Layer Chromatography |
Dyes / Pigments
|
Gas chromatography simulation for a TRS-80 Whisnant, David M.
36. Bits and pieces, 13. A gas chromatography simulator on a computer helps aid novice users to become accustomed to the instrument.
Whisnant, David M. J. Chem. Educ. 1983, 60, 46.
Gas Chromatography
|
Lecture experiment in gas-liquid chromatography with a simple gas chromatograph at room temperature Wollrah, Adalbert
Apparatus and method for separating mixtures of pentane / hexane and methyl chloride / carbon tetrachloride.
Wollrah, Adalbert J. Chem. Educ. 1982, 59, 1042.
Chromatography |
Separation Science |
Alkanes / Cycloalkanes
|
Classroom chromatography Bauer, Christopher F.
A classroom demonstration in which students are used to illustrate the operation of a chromatographic column.
Bauer, Christopher F. J. Chem. Educ. 1982, 59, 846.
Chromatography |
Separation Science
|
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
|
Separation technology: I. Chromatography Mickey, Charles D.
This article covers the development of and the many different types of chromatography available and offers a good overview of the powers of this tool of analytical chemistry.
Mickey, Charles D. J. Chem. Educ. 1981, 58, 997.
Chromatography |
Separation Science
|
Thin layer chromatographic separation of common analgesics - A consumer experiment Cormier, Russell A.; Hudson, William B.; Siegel, Jay A.
A simple method for determining which analgesics have which ingredients.
Cormier, Russell A.; Hudson, William B.; Siegel, Jay A. J. Chem. Educ. 1979, 56, 180.
Consumer Chemistry |
Chromatography |
Separation Science |
Medicinal Chemistry |
Qualitative Analysis
|
Participatory lecture demonstrations Battino, Rubin
Examples of participatory lecture demonstrations in chromatography, chemical kinetics, balancing equations, the gas laws, the kinetic-molecular theory, Henry's law, electronic energy levels in atoms, translational, vibrational, and rotational energies of molecules, and organic chemistry.
Battino, Rubin J. Chem. Educ. 1979, 56, 39.
Chromatography |
Kinetic-Molecular Theory |
Kinetics |
Stoichiometry |
Gases |
Atomic Properties / Structure |
Molecular Properties / Structure
|
Computer simulation in organic chemistry - Thin layer chromatography Bond, Douglas
The author shares his trials and victories in attempting to produce first class organic chemists.
Bond, Douglas J. Chem. Educ. 1978, 55, 323.
Thin Layer Chromatography
|
Rubber ruler for determination of Rf values for thin layer chromatography Hiegel, Gene A.
The author shares a quick and simple method to aid in student reading of Rf values in TLC.
Hiegel, Gene A. J. Chem. Educ. 1978, 55, 59.
Thin Layer Chromatography |
Laboratory Equipment / Apparatus
|
Isolation of dyes for analysis Levinson, Alfred S.
The use of ion exchange resin for the isolation of dyes from beverages, gelatin desserts, and other foods.
Levinson, Alfred S. J. Chem. Educ. 1977, 54, 460.
Separation Science |
Dyes / Pigments |
Chromatography |
Thin Layer Chromatography |
Food Science |
Consumer Chemistry |
Ion Exchange
|
Paper chromatography of carbohydrates Croft, L. R.; Haghighi, S.
A simple detection reagent for carbohydrates.
Croft, L. R.; Haghighi, S. J. Chem. Educ. 1977, 54, 112.
Chromatography |
Separation Science |
Carbohydrates
|
Detection of butylated hydroxyanisole (BHA) in cooking oils McKone, Harold T.
The author describes an experiment he uses in an Environmental Science course geared toward non-science majors.
McKone, Harold T. J. Chem. Educ. 1976, 53, 800.
Nonmajor Courses |
Food Science |
Chromatography |
Quantitative Analysis |
Fatty Acids
|
Separation and identification of some FD&C dyes by TLC. An undergraduate laboratory experiment McKone, Harold T.; Nelson, Gloria J.
The authors report on a facile TLC experiment involving the separation and identification of three FD&C colors: Red #2, Yellow #5, and Yellow #6.
McKone, Harold T.; Nelson, Gloria J. J. Chem. Educ. 1976, 53, 722.
Chromatography |
Thin Layer Chromatography
|
Separation of paprika pigments. An introductory TLC experiment Elder, J. W.; Abbruzzese, J.; Murray, J.; Zielski, M.
This experiment allows for the use of commonly available "natural" material with a minimum of sample preparation for an introductory tlc experiment.
Elder, J. W.; Abbruzzese, J.; Murray, J.; Zielski, M. J. Chem. Educ. 1976, 53, 43.
Thin Layer Chromatography |
Natural Products |
Dyes / Pigments
|
Chromatography on chalk Wollrab, Adalbert
Describes how a variety of mixtures can be separated using a piece of chalk.
Wollrab, Adalbert J. Chem. Educ. 1975, 52, 809.
Chromatography |
Separation Science |
Dyes / Pigments |
Solutions / Solvents
|
Questions [and] Answers Campbell, J. A.
188-192. Five biochemistry related questions and their answers.
Campbell, J. A. J. Chem. Educ. 1975, 52, 390.
Enrichment / Review Materials |
Nuclear / Radiochemistry |
Chromatography |
Gases |
Nutrition
|
The determination of alcohol content of beer: A general and analytical experiment with high student interest value Lokken, D. A.
Procedure that uses gas chromatography to determine the alcohol content of beer.
Lokken, D. A. J. Chem. Educ. 1975, 52, 329.
Gas Chromatography |
Alcohols |
Quantitative Analysis
|
A simple gas chromatograph for teaching purposes Wollrab, Adalbert
A simple apparatus for demonstrating the separation of a mixture of pentane and hexane gas.
Wollrab, Adalbert J. Chem. Educ. 1975, 52, 200.
Chromatography |
Gas Chromatography |
Laboratory Equipment / Apparatus |
Separation Science |
Alkanes / Cycloalkanes |
Gases
|
Determining the molecular weight of N-fatty acids by thin layer chromatography Singh, Eric J.; Zuspan, Frederick P.
Simple procedure for determining the molecular weight of N-fatty acids by thin layer chromatography.
Singh, Eric J.; Zuspan, Frederick P. J. Chem. Educ. 1973, 50, 625.
Molecular Properties / Structure |
Physical Properties |
Thin Layer Chromatography |
Chromatography |
Fatty Acids
|
Fiber tip chromatography hints Falkin, Harlan
Suggestions for chromatography paper and method.
Falkin, Harlan J. Chem. Educ. 1973, 50, 448.
Chromatography |
Separation Science |
Laboratory Management |
Dyes / Pigments
|
Fiber tipped pens as a chromatography experiment Kasimer, Philip
Allowing students to develop their own solvent mixtures for separating the constituent dyes in fiber tipped pens.
Kasimer, Philip J. Chem. Educ. 1973, 50, 158.
Chromatography |
Separation Science |
Dyes / Pigments
|
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
|
The thin-layer chromatography of drugs. A laboratory experiment Neman, R. L.
Students are introduced to thin layer chromatography, are provided samples known to contain alkaloids and barbiturates, separate the mixtures using tlc, determine the components of their unknowns, and calculate Rf values for the components.
Neman, R. L. J. Chem. Educ. 1972, 49, 834.
Chromatography |
Thin Layer Chromatography |
Separation Science |
Drugs / Pharmaceuticals
|
Small-scale thin-layer chromatography. Experiments for teaching purposes Brinkman, U. A. Th.; De Vries, G.
Describes a number of rapid thin-layer chromatography separations that can be conveniently used to introduce chromatography in the teaching laboratory.
Brinkman, U. A. Th.; De Vries, G. J. Chem. Educ. 1972, 49, 545.
Thin Layer Chromatography |
Chromatography |
Microscale Lab |
Separation Science
|
Circular chromatography of inks Wan, Alfred S. C.
Circular chromatography provides a very convenient and rapid method for demonstrating the principles of paper chromatography.
Wan, Alfred S. C. J. Chem. Educ. 1972, 49, 335.
Chromatography |
Separation Science |
Dyes / Pigments
|
A simple pressure applicator device for column chromatography Chen, S. C.
Diagrams a simple pressure applicator for column chromatography.
Chen, S. C. J. Chem. Educ. 1972, 49, 318.
Laboratory Equipment / Apparatus |
Chromatography
|
A simple apparatus for teaching the principles of chromatography Kellomaki, Aarre
A device that follows the elution of electrolytes through liquid column chromatography by continuously measuring the conductivity of the effluent.
Kellomaki, Aarre J. Chem. Educ. 1972, 49, 139.
Chromatography |
Laboratory Equipment / Apparatus |
Separation Science
|
Let's get the nonscience majors into the lab! Griffin, Roger W., Jr.
The author shares his experiences with a successful laboratory course for nonmajors. Experiments which have been carried out include: geometry of molecules, measurements and errors, separation and purification, spectroscopy, chromatography, colored natural products, and dyes.
Griffin, Roger W., Jr. J. Chem. Educ. 1971, 48, 685.
Nonmajor Courses |
Dyes / Pigments |
Natural Products |
Chromatography |
Separation Science |
Quantitative Analysis |
VSEPR Theory |
Spectroscopy
|
The paper chromatographic separation of the ions of elements 26 through 30. A laboratory experiment Skovlin, Dean O.
This experiment describes the simultaneous ascending one dimensional separation of the ions of elements iron through zinc on filter paper using a solvent mixture or hydrochloric acid and 2-butanone.
Skovlin, Dean O. J. Chem. Educ. 1971, 48, 274.
Chromatography |
Descriptive Chemistry |
Transition Elements
|
A simple separation and identification of radium D, E, and F. Glasoe, Paul K.
The author provides a modification to general chemistry lab involving a separation and identification of a radium sample.
Glasoe, Paul K. J. Chem. Educ. 1971, 48, 268.
Separation Science |
Chromatography
|
General chemistry experiments: Six short, inexpensive procedures Heit, M. L.; Dauphinee, G. A.
These simple experiments involve conductivity comparisons of derivatives of the acetate ion, paper chromatography, sublimation, the effect of temperature on equilibrium, the detection of I-, and an example of an equilibrium shift.
Heit, M. L.; Dauphinee, G. A. J. Chem. Educ. 1970, 47, 532.
Electrochemistry |
Chromatography |
Phases / Phase Transitions / Diagrams |
Equilibrium |
Oxidation / Reduction
|
A thin-layer chromatography experiment for general chemistry Lincoln, S.; Pohl, R. A.; Haworth, D. T.
Describes an experiment that can be used to separate the classical groups of inorganic cations thin layer chromatography analysis using microcrystalline cellulose.
Lincoln, S.; Pohl, R. A.; Haworth, D. T. J. Chem. Educ. 1970, 47, 401.
Chromatography |
Separation Science |
Thin Layer Chromatography |
Quantitative Analysis
|
Car Won't Start? Nash, Leonard K.; Plumb, Robert C.
Examines the questions, "Does the voltage of a battery drop with temperature" and "Does the ability of a battery to deliver current decrease with temperature?"
Nash, Leonard K.; Plumb, Robert C. J. Chem. Educ. 1970, 47, 382.
Electrochemistry |
Thin Layer Chromatography |
Applications of Chemistry |
Consumer Chemistry |
Electrolytic / Galvanic Cells / Potentials
|
A lecture-laboratory experiment in gas-liquid partition chromatography McKay, Edward S.; Vasers, Alise
After being introduced to the chromatographic process in lecture, each student is given a copy of a chromatogram of an unknown mixture and asked to identify its composition and the concentration of each component.
McKay, Edward S.; Vasers, Alise J. Chem. Educ. 1970, 47, 239.
Gases |
Liquids |
Chromatography |
Gas Chromatography |
Quantitative Analysis |
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
|
A simple laboratory experiment on PVP column chromatography Lerner, Joseph
This experiment deals with the separation of three colored biochemicals, two of which are vitamins, the other a protein.
Lerner, Joseph J. Chem. Educ. 1970, 47, 32.
Chromatography |
Separation Science |
Vitamins
|
A versatile and compact chromatographic chamber Lehrfeld, J.
This simple and inexpensive glass chamber facilitates thin-layer chromatography separations of a large number of samples within 5 minutes.
Lehrfeld, J. J. Chem. Educ. 1969, 46, 848.
Laboratory Equipment / Apparatus |
Separation Science |
Thin Layer Chromatography
|
An introduction to chromatography Gaucher, G. M.
The object of this presentation is to serve as a preliminary practical introduction and guide to chromatography.
Gaucher, G. M. J. Chem. Educ. 1969, 46, 729.
Chromatography |
Separation Science |
Thin Layer Chromatography |
Gas Chromatography |
Ion Exchange
|
Modifications of solution chromatography illustrated with chloroplast pigments Strain, Harold H.; Sherma, Joseph
Using plant pigments to demonstrate various chromatographic techniques, including column adsorption, paper adsorption, paper partition, column partition, and thin layer chromatography.
Strain, Harold H.; Sherma, Joseph J. Chem. Educ. 1969, 46, 476.
Chromatography |
Separation Science |
Plant Chemistry |
Dyes / Pigments |
Natural Products |
Thin Layer Chromatography
|
Computer simulation of experimental data Shwendeman, R. H.
This note describes some of the techniques in programming used to generate a sufficient variety of experimental data to provide each student with his own set of numbers for analysis in conjunction with the demonstration laboratory.
Shwendeman, R. H. J. Chem. Educ. 1968, 45, 665.
Molecular Properties / Structure |
Physical Properties |
Gas Chromatography
|
Cylindrical thin-layer chromatography Jordan, David
This short note describes the use and advantages of cylindrical thin-layer chromatography.
Jordan, David J. Chem. Educ. 1968, 45, 510.
Chromatography |
Thin Layer Chromatography |
Separation Science |
Dyes / Pigments
|
The use of cellophane sheets for direct reading and recording of Rf values Chortyk, O. T.; Kushnir, I.
Describes the use of cellophane sheets for direct reading and recording of Rf values.
Chortyk, O. T.; Kushnir, I. J. Chem. Educ. 1968, 45, 506.
Chromatography |
Thin Layer Chromatography |
Separation Science
|
A simple sprayer for quantitative thin-layer chromatography Samuels, Stanley
A simple, inexpensive sprayer for chromatographic use that can be constructed by a student as a laboratory project.
Samuels, Stanley J. Chem. Educ. 1968, 45, 438.
Laboratory Equipment / Apparatus |
Thin Layer Chromatography |
Chromatography |
Separation Science
|
Chromatography: Inorganic separations using chalkboard chalk Lauren, Paul M.
This demonstration involves separating several combinations of aqueous ions.
Lauren, Paul M. J. Chem. Educ. 1967, 44, A345.
Chromatography |
Separation Science |
Aqueous Solution Chemistry
|
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
|
Test tube and glass rod tlc Ikan, Raphael; Rapaport, Eliezer
Describes the use of test tubes and glass rods coated on their outer surfaces for thin layer chromatography.
Ikan, Raphael; Rapaport, Eliezer J. Chem. Educ. 1967, 44, 297.
Thin Layer Chromatography |
Chromatography |
Separation Science
|
The use of talc as a tlc adsorbent Walsh, Brother Joseph M.
Describes the use of talc as a thin layer chromatography adsorbent, particularly with respect to the separation of flavonoids, sugars, and proteins.
Walsh, Brother Joseph M. J. Chem. Educ. 1967, 44, 294.
Thin Layer Chromatography |
Chromatography |
Separation Science |
Proteins / Peptides |
Carbohydrates
|
Separation by adsorption chromatography: An experiment on a colorless mixture Pine, Stanley H.
Acetophenone and alpha-phenylethanol are separated through adsorption chromatography.
Pine, Stanley H. J. Chem. Educ. 1966, 43, 672.
Chromatography |
Separation Science
|
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
|
Column chromatography experiment using unknowns Marmor, Solomon
Students are asked to separate an unknown mixture consisting of two colorless solids through column chromatography.
Marmor, Solomon J. Chem. Educ. 1965, 42, 272.
Chromatography |
Separation Science
|
Electrophoresis using thin layer materials Criddle, W. J.; Moody, G. J.; Thomas, J. D. R.
Thin layer materials prepared for chromatography are used for electrophoresis.
Criddle, W. J.; Moody, G. J.; Thomas, J. D. R. J. Chem. Educ. 1964, 41, 609.
Electrochemistry |
Electrophoresis |
Separation Science |
Thin Layer Chromatography
|
Test tube TLC BeMiller, J. N.
Builds on several earlier articles regarding rapid demonstrations of thin-layer chromatography using test tubes.
BeMiller, J. N. J. Chem. Educ. 1964, 41, 608.
Chromatography |
Separation Science |
Thin Layer Chromatography
|
Chromatography Saurer, J. M.
A stick of soft chalk is used to separate a cadmium and lead nitrate.
Saurer, J. M. J. Chem. Educ. 1963, 40, A535.
Chromatography |
Separation Science
|
TLC separation of ink pigments Druding, Leonard F.
The separation of inks into their component pigments was chosen for its simplicity in illustrating techniques and choice of solvent for thin layer chromatography; it also affords the student the opportunity to visually observe the course of the separation.
Druding, Leonard F. J. Chem. Educ. 1963, 40, 536.
Dyes / Pigments |
Chromatography |
Separation Science |
Thin Layer Chromatography
|
TLCVersatile tool Malins, Donald C.; Wekell, John C.
Examines apparatus and techniques, lecture demonstrations, laboratory experiments and general applications associated with thin layer chromatography.
Malins, Donald C.; Wekell, John C. J. Chem. Educ. 1963, 40, 531.
Chromatography |
Thin Layer Chromatography |
Separation Science
|
Thin layer chromatographic separation of leaf pigments: A rapid demonstration Rollins, Charles
Eleven pigment spots can be detected from an extract of grass leaves by a rapid TLC separation on silicic acid.
Rollins, Charles J. Chem. Educ. 1963, 40, 32.
Plant Chemistry |
Dyes / Pigments |
Separation Science |
Chromatography |
Thin Layer Chromatography
|
Separation of plant pigments by thin layer chromatography Anwar, M. H.
Describes a lab activity to separate chloroplast pigments over a thin layer of silicic acid.
Anwar, M. H. J. Chem. Educ. 1963, 40, 29.
Separation Science |
Plant Chemistry |
Thin Layer Chromatography |
Chromatography
|
Hypodermic syringes in quantitative elementary chemistry experiments. Part 1. The gas laws Davenport, Derek A.
Describes a number of experiments and demonstrations that rely on the use of hypodermic syringes, including Boyle's law, Charles' law, the ideal gas law, Dalton's law of partial pressures, Graham's laws of diffusion and effusion, and Gay-Lussac's law of combining volumes.
Davenport, Derek A. J. Chem. Educ. 1962, 39, 252.
Gas Chromatography
|
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
|
Acceleration of biochemical research by recent analytical developments Anthony, David S.
The development of several kinds of chromatography and the wide spread availability of isotopes as well as associated counting equipment permitted experimentation in areas that could not previously be explored.
Anthony, David S. J. Chem. Educ. 1959, 36, 540.
Chromatography |
Ion Exchange |
Gas Chromatography |
Isotopes |
Nuclear / Radiochemistry
|
A chromatographic chamber for the student laboratory Wiggans, Donald S.
The construction of an effective chromatographic tank can be accomplished by means of two beakers.
Wiggans, Donald S. J. Chem. Educ. 1957, 34, 536.
Chromatography |
Separation Science |
Laboratory Equipment / Apparatus
|
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
|
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
|
A chromatographic demonstration Forss, David A.
Describes a chromatographic demonstration that does not really on flammable and odorous organic solvents.
Forss, David A. J. Chem. Educ. 1955, 32, 306.
Chromatography |
Separation Science
|
Apparatus for demonstrating paper chromatography Baker, Philip S.
Presents a very simple and convenient arrangement for demonstrating paper chromatography.
Baker, Philip S. J. Chem. Educ. 1954, 31, 237.
Chromatography |
Laboratory Equipment / Apparatus |
Separation Science
|
Paper chromatography for students Blackwell, R. Quentin
Describes a simple method whereby various mixtures can be separated using paper chromatography under a variety of conditions.
Blackwell, R. Quentin J. Chem. Educ. 1953, 30, 614.
Chromatography |
Separation Science
|
A simple lecture demonstration of paper partition chromatography Kritchevsky, Evelyn S.; Kritchevsky, David
Describes a simple lecture demonstration of paper partition chromatography involving food coloring that gives readily interpretable results within one lecture period.
Kritchevsky, Evelyn S.; Kritchevsky, David J. Chem. Educ. 1953, 30, 370.
Chromatography
|
Introductory experiments in inorganic paper chromatography Surak, John G.; Schlueter, Donald P.
Presents a simple, small-scale method of paper chromatography appropriate for a freshman qualitative-analysis class.
Surak, John G.; Schlueter, Donald P. J. Chem. Educ. 1952, 29, 144.
Chromatography |
Separation Science |
Qualitative Analysis
|
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