| Journal Articles: 96 results |
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An Inexpensive Semiautomatic Pressurized Microfiltration Device E. Rodríguez-Fernandez, M. A. Vicente, J. J. Criado, and J. L. Manzano
Using the device shown, the filtration of small volumes (= 10 mL) of liquid can be facilitated by replacing the vacuum or manual pressure on the piston with pressure exerted by a rubber band on the piston. The filtration is thus conducted in a semiautomatic way.
Rodríguez-Fernandez, E.; Vicente, M. A.; Criado, J. J.; Manzano, J. L. J. Chem. Educ. 2008, 85, 1051.
Laboratory Equipment / Apparatus |
Liquids |
Microscale Lab
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Thermal Equilibrium in Plastic and Glass Microscale Containers Estela Curbelo, María F. Cerdá, and Eduardo Méndez
Thermal equilibration of solutions occurs more slowly in plastic than glass containers, a factor that should be considered in the design of microscale experiments.
Curbelo, Estela; Cerdá, María F.; Méndez, Eduardo. J. Chem. Educ. 2007, 84, 1326.
Heat Capacity |
Laboratory Equipment / Apparatus |
Microscale Lab |
Thermodynamics
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Laboratory Experiments on the Electrochemical Remediation of the Environment. Part 7: Microscale Production of Ozone Jorge G. Ibanez, Rodrigo Mayen-Mondragon, M. T. Moran-Moran, Alejandro Alatorre-Ordaz, Bruce Mattson, and Scot Eskestrand
Ozone, a powerful oxidizing and disinfecting agent, is produced electrochemically in the undergraduate laboratory with simple equipment and under very mild conditions. Tests are given to characterize it, to observe its action in simulated environmental applications, and to measure its rate of production.
Ibanez, Jorge G.; Mayen-Mondragon, Rodrigo; Moran-Moran, M. T.; Alatorre-Ordaz, Alejandro; Mattson, Bruce; Eskestrand, Scot. J. Chem. Educ. 2005, 82, 1546.
Aqueous Solution Chemistry |
Descriptive Chemistry |
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Laboratory Equipment / Apparatus |
Microscale Lab |
Oxidation / Reduction |
Reactions
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Questioning an Ultrasonic Lab Setup Francisco J. Arnáiz
The intermediate referred to as an oxyallyl cation is not a cation but a zwitterion, and the mentioned by-product, CuI2 (crucial to explain the need of excess copper referred to in the text, since in fact CuI is formed) is nonexistent.
Arnáiz, Francisco J. J. Chem. Educ. 2004, 81, 193.
Laboratory Equipment / Apparatus |
Metals |
Microscale Lab
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Questioning an Ultrasonic Lab Setup Francisco J. Arnáiz
The intermediate referred to as an oxyallyl cation is not a cation but a zwitterion, and the mentioned by-product, CuI2 (crucial to explain the need of excess copper referred to in the text, since in fact CuI is formed) is nonexistent.
Arnáiz, Francisco J. J. Chem. Educ. 2004, 81, 193.
Laboratory Equipment / Apparatus |
Metals |
Microscale Lab
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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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Techniques in Organic Chemistry: Miniscale, Standard Taper Microscale, and Williamson Microscale (Jerry R. Mohrig, Christina Noring Hammond, Paul F. Schatz, and Terence C. Morrill) Richard M. Pagni
Supplementary text organized like most organic chemistry lab manuals, but without the experiments.
Pagni, Richard M. J. Chem. Educ. 2003, 80, 388.
Laboratory Equipment / Apparatus |
Microscale Lab |
Instrumental Methods |
Enrichment / Review Materials
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A Novel Microscale Gas Generator Jinhua Wang, Zaisheng Lu, and Changcun Zhao
Design of a microscale gas generator.
Wang, Jinhua; Lu, Zaisheng; Zhao, Changcun. J. Chem. Educ. 2003, 80, 181.
Gases |
Laboratory Equipment / Apparatus |
Microscale Lab
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Precision in Microscale Titration Mono M. Singh, Cynthia B. McGowan, and Zvi Szafran
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Singh, Mono M.; McGowan, Cynthia B.; Szafran, Zvi. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
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Precision in Microscale Titration Julian L. Roberts Jr.
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Roberts, Julian L., Jr. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
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Precision in Microscale Titration Julian L. Roberts Jr.
Comparing the precision of a 2-mL graduated pipet and 50-mL graduated buret in performing a microscale titration.
Roberts, Julian L., Jr. J. Chem. Educ. 2002, 79, 941.
Laboratory Equipment / Apparatus |
Chemometrics |
Microscale Lab |
Titration / Volumetric Analysis
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A Useful System for Microscale and Semi-microscale Fractional Distillation of Air-Sensitive Substances with High Boiling Points J. Alfredo Gutiérrez
A procedure to purify air-sensitive liquids with high boiling points using a horizontal distilling apparatus that avoids extreme refluxing and can efficiently separate the fractions of a mixture.
Gutiérrez, J. Alfredo. J. Chem. Educ. 2001, 78, 653.
Laboratory Equipment / Apparatus |
Liquids |
Microscale Lab |
Separation Science |
Laboratory Management
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Small-Scale Filtration Using a Modified Plastic Syringe Mikael Begtrup
A simple procedure is described for manual, small-scale pressure filtration performed in a modified plastic syringe.
Begtrup, Mikael. J. Chem. Educ. 2001, 78, 543.
Synthesis |
Laboratory Equipment / Apparatus |
Microscale Lab |
Separation Science
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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
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Ultramicro-Boiling-Point Determination--A Modification Henry Brouwer
The determination of microscale boiling points in a melting-point tube may be simplified by replacing the micro-bell bubbler with an ultrathin capillary tube bubbler.
Brouwer, Henry. J. Chem. Educ. 2000, 77, 1480.
Laboratory Equipment / Apparatus |
Microscale Lab |
Phases / Phase Transitions / Diagrams
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Effective, Safe, and Inexpensive Microscale Ultrasonic Setup for Teaching and Research Labs Angel M. Montaña and Pedro M. Grima
A homemade, safe, effective, and inexpensive reactor for ultrasonic horns with applications in microscale experiments in teaching and research laboratories is presented.
Montaña, Angel M.; Grima, Pedro M. J. Chem. Educ. 2000, 77, 754.
Laboratory Equipment / Apparatus |
Metals |
Microscale Lab |
Laboratory Management
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A Comparative Study of Microscale and Standard Burets Mono M. Singh, Cynthia B. McGowan, Zvi Szafran, and R. M. Pike
This paper describes a comparative study of the performance of microscale titrations using 2-mL microscale burets with those using Beral pipets and normal 50- and 10-mL burets. The usefulness of a microburet in general and analytical chemistry is demonstrated by presenting results from acid-base, oxidation-reduction, precipitation, complexometric, and pH titrations.
Singh, Mono M.; McGowan, Cynthia B.; Szafran, Zvi; Pike, Ronald M. J. Chem. Educ. 2000, 77, 625.
Acids / Bases |
Aqueous Solution Chemistry |
Laboratory Equipment / Apparatus |
Microscale Lab |
Quantitative Analysis |
Oxidation / Reduction |
Titration / Volumetric Analysis |
pH |
Precipitation / Solubility
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The Development of a Microscale Continuous Hot Solvent Extractor Steve S. Wesolowski, Thomas Mulcahy, Christina M. Zafoni, and Wayne E. Wesolowski
To minimize the waste solvent produced, we have developed a microscale continuous hot solvent extractor that effectively extracts 100-500-mg samples using about 4 mL of solvent.
Wesolowski, Steve S.; Mulcahy, Thomas; Zafoni, Christina M.; Wesolowski, Wayne E. J. Chem. Educ. 1999, 76, 1116.
Microscale Lab |
Laboratory Equipment / Apparatus |
Separation Science
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A Microscale Vacuum Distillation Apparatus for Simple Separations Ulf Ellervik and Hans Grundberg
To improve microscale distillation in a basic organic chemistry course, a simple and highly efficient vacuum distillation apparatus was designed.
Ellervik, Ulf; Grundberg, Hans. J. Chem. Educ. 1999, 76, 986.
Microscale Lab |
Laboratory Equipment / Apparatus |
Separation Science
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Practical Origami in the Microscale Organic Lab Daryl L. Ostercamp
The construction of a small paper boxlet, ideally suited for handling and drying small amounts of crystals, is presented. Flat horizontal "handles" present in the boxlet allow one to record pertinent data.
Ostercamp, Daryl L. J. Chem. Educ. 1998, 75, 1456.
Laboratory Equipment / Apparatus |
Microscale Lab
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Laboratory Made Electrochemical Sensors for Adsorptive Stripping Voltammetry Teresa Goscinska
A novel method of adsorptive stripping voltammetry with a medium exchange preconcentration for the analytical detection of ferrocene in a small sample is presented. A laboratory prepared carbon paste electrode or a clay modified carbon paste electrode (referred to as a sensor) is used as a working electrode.
Goscinska, Teresa. J. Chem. Educ. 1998, 75, 1038.
Electrochemistry |
Laboratory Equipment / Apparatus |
Microscale Lab
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A Three-Cent Reusable Craig Tube Thomas J. Russo
A rugged three-cent reusable Craig tube is easily made from a cotton swab and disposable pipet tip. The tube costs three cents or less and can be reused.
Russo, Thomas J. J. Chem. Educ. 1998, 75, 880.
Laboratory Equipment / Apparatus |
Synthesis |
Microscale Lab
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Modified Carbon Electrodes for Microscale Electrochemistry Enrico Mocellin and Teresa Goscinska
This paper tries to communicate the surface chemistry nature of electrochemistry, while conveying the future possibilities and application of the subject in such a way that the students may gain some insight and venture to explore the modern methodology and its future directions.
Mocellin, Enrico; Goscinska, Teresa. J. Chem. Educ. 1998, 75, 771.
Laboratory Equipment / Apparatus |
Electrochemistry |
Microscale Lab |
Synthesis
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Delivery of Uniform and Countable Drops David F. Koster
A simple method that overcomes many of the problems when using a Beral pipet is to place the bulb of the pipet in a clamp (a 3-finger microclamp works well, but most any clamp will do). By slowly tightening the screws of the clamp one can deliver uniform and easily countable drops.
Koster, David F. J. Chem. Educ. 1998, 75, 637.
Laboratory Equipment / Apparatus |
Microscale Lab |
Laboratory Management
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A Modified Microburet for Microscale Titration Mono M. Singh, Cynthia McGowan, Zvi Szafran, and Ronald M. Pike
A modified microburet can be constructed inexpensively from readily available laboratory materials. These materials include a 2 mL graduated pipet, a 5 or 10 mL plastic syringe body, a small piece of latex tubing, and a small size automatic delivery pipet tip. The modified microburet is easy to use, and gives accurate results.
Singh, Mono M.; McGowan, Cynthia; Szafran, Zvi; Pike, Ronald M. J. Chem. Educ. 1998, 75, 371.
Laboratory Equipment / Apparatus |
Microscale Lab |
Acids / Bases |
Titration / Volumetric Analysis
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Determination of Density of Liquid by a Capillary with Two Pinhole Ends Shui-Ping Yang
To improve the precision and accuracy in measuring the density of a liquid at the microscale level, a capillary with a volume of about 30 L and two pinhole ends has been designed. The density determined by this capillary method is precise to four significant figures.
Yang, Shui-Ping. J. Chem. Educ. 1998, 75, 368.
Laboratory Equipment / Apparatus |
Microscale Lab |
Liquids |
Physical Properties
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Notes on Converting to Microscale Antonio Herrera and John Almy
Small glassware is used rather than conventional microscale kits. The equipment and four microscale experiments that emphasize microscale techniques are described.
Herrera , Antonio; Almy, John. J. Chem. Educ. 1998, 75, 83.
Laboratory Equipment / Apparatus |
Microscale Lab
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A Microscale Laboratory Heating System Dwight Kinzer
A multifunctional heating system and a disposable still for use in the microscale laboratory are described. Time required for laboratory procedures is minimized. A novel microscale boiling point determination procedure is included.
Kinzer, Dwight. J. Chem. Educ. 1997, 74, 1333.
Laboratory Equipment / Apparatus |
Microscale Lab |
Separation Science |
Laboratory Management
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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
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Microwave Microscale Organic Experiments John W. Elder and Kathleen M. Holtz
This article describes an inexpensive apparatus to perform sonochemical reactions, in small scale, using common lab glassware.
Elder, John W.; Holtz, Kathleen M. J. Chem. Educ. 1996, 73, A104.
Microscale Lab |
Magnetic Properties |
Laboratory Equipment / Apparatus |
Synthesis
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Micropath Distillation Apparatus N. K. Hazra and D. Mal
A shortpath distillation apparatus in its inverted position can be used for microscale distillation of a liquid sample. This article describes the process.
Hazra, N. K.; Mal, D. J. Chem. Educ. 1996, 73, A103.
Microscale Lab |
Separation Science |
Laboratory Equipment / Apparatus |
Liquids
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Easy Filling of Capillaries in an Inert Atmosphere Francisco J. Arnáiz
The procedure described in this article offers a simpler way to charge capillaries or tubes in an inert atmosphere using inexpensive materials.
Arnaiz, Francisco J. J. Chem. Educ. 1996, 73, A102.
Microscale Lab |
Solids |
Laboratory Equipment / Apparatus |
Laboratory Management
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A Manageable Measurement Method for Sodium Mario Branca and Steven Loiselle
The use of sodium in chemical research is hampered by its reactivity in moist air, which leads to difficult handling and measurement methods. We describe a simple method using disposable microcapillary pipettes for small quantity applications.
J. Chem. Educ. 1996, 73, 857.
Laboratory Management |
Laboratory Equipment / Apparatus |
Microscale Lab
|
Selective and Quantitative Catalytic Hydrogenation: A Safe, Inexpensive Experiment for Large Classes John A. Landgrebe
A catalytic hydrogenation experiment suitable for large classes.
Landgrebe, John A. J. Chem. Educ. 1995, 72, A220.
Catalysis |
Synthesis |
Laboratory Equipment / Apparatus |
Microscale Lab
|
An Economical Replacement for Nitrogen in Solvent Removal in Microscale Organic Laboratories Ruekberg, Ben.
A simple way to remove solvents from reaction mixtures that are not readily oxidized.
Ruekberg, Ben. J. Chem. Educ. 1995, 72, A200.
Laboratory Management |
Laboratory Equipment / Apparatus |
Microscale Lab
|
Small-Scale Potentiometry and Silver One-Pot Reactions David W. Brooks, Dianne Epp, and Helen B. Brooks
Apparatus and method for construction and application of a silver reference electrode in silver one-pot reactions.
Brooks, David W.; Epp, Dianne; Brooks, Helen B. J. Chem. Educ. 1995, 72, A162.
Electrochemistry |
Laboratory Equipment / Apparatus |
Potentiometry |
Ion Selective Electrodes |
Microscale Lab
|
A Microscale Rotary Evaporator Maynard, David F.
A simple roto-vap-type apparatus was developed for rapid removal of excess solvent in the microscale laboratory.
Maynard, David F. J. Chem. Educ. 1994, 71, A272.
Microscale Lab |
Solutions / Solvents |
Laboratory Equipment / Apparatus
|
Macrostyle Microscale Equipment Casanova, Joseph; Coyne, Gary S.
Microscale glassware that is designed to operate like full-scale equipment.
Casanova, Joseph; Coyne, Gary S. J. Chem. Educ. 1994, 71, A148.
Microscale Lab |
Laboratory Equipment / Apparatus |
Laboratory Management
|
Inexpensive Reagent Dispenser Brouwer, H.
An inexpensive reagent dispenser constructed from a disposable syringe and three-way valve.
Brouwer, H. J. Chem. Educ. 1994, 71, A148.
Microscale Lab |
Laboratory Equipment / Apparatus |
Laboratory Management
|
An Inexpensive Suction Microfilter McDevitt, Eugene J.
Two disposable polyethylene transfer pipets can be used to form a single-use filtering funnel for several grams of solid yield.
McDevitt, Eugene J. J. Chem. Educ. 1994, 71, A147.
Microscale Lab |
Laboratory Equipment / Apparatus |
Separation Science
|
A Better Way to Cut Filter Paper for Microscale Lab Use Huisman, Richard D.
Using a power paper punch to cut microscale filter paper.
Huisman, Richard D. J. Chem. Educ. 1994, 71, A147.
Microscale Lab |
Laboratory Equipment / Apparatus |
Laboratory Management |
Separation Science
|
Microwave Synthesis of Tetraphenylcyclopentadienone and Dimethyl Tetraphenylphthalate Elder, John W.
Procedure for using a microwave to synthesize tetraphenylcyclopentadienone and dimethyl tetraphenylphthalate.
Elder, John W. J. Chem. Educ. 1994, 71, A142.
Microscale Lab |
Laboratory Equipment / Apparatus |
Synthesis |
Aromatic Compounds |
Esters |
Amines / Ammonium Compounds
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Salt Bridge Using Soil Moist Brooks, David W.; Brooks, Helen B.
Using Soil Moist in the stem of a plastic transfer pipet as an effective salt bridge for small scale electrochemical experiments.
Brooks, David W.; Brooks, Helen B. J. Chem. Educ. 1994, 71, A62.
Microscale Lab |
Laboratory Equipment / Apparatus |
Electrochemistry
|
The Many Uses of a Seven-inch Side Arm Test Tube McDevitt, Eugene J.
Reducing the cost of microglassware kits by substituting a $5 side arm test tube for a variety of operations.
McDevitt, Eugene J. J. Chem. Educ. 1994, 71, A58.
Laboratory Equipment / Apparatus |
Microscale Lab |
Laboratory Management
|
Direct Collection of Distillation Fractions into Vials: A Method for the Micro/Semi-Micro Scale Laboratory Jordan, David
An inexpensive and simple system for collection of distillation fractions directly into their storage containers.
Jordan, David J. Chem. Educ. 1994, 71, A5.
Microscale Lab |
Laboratory Equipment / Apparatus |
Separation Science
|
A Simple Ring Oven for Microanalysis Riyazuddin, P.
Fabrication and manipulation of a simple ring oven for microanalysis.
Riyazuddin, P. J. Chem. Educ. 1994, 71, 606.
Laboratory Equipment / Apparatus |
Microscale Lab |
Quantitative Analysis
|
Non-Flame Heat on a Budget Teague, Harold J.
Powering eight sand baths per lab bench to provide non-flame heat.
Teague, Harold J. J. Chem. Educ. 1994, 71, 435.
Laboratory Equipment / Apparatus |
Microscale Lab
|
The stereochemistry of commercial 2,6-dimethylcyclohexanone: An application of capillary gas chromatography Garner, Charles M.
One example of how capillary gas chromatography can be employed in undergraduate organic laboratories.
Garner, Charles M. J. Chem. Educ. 1993, 70, A310.
Gas Chromatography |
Microscale Lab |
Laboratory Equipment / Apparatus |
Aldehydes / Ketones |
Diastereomers |
Stereochemistry
|
Synthesis of metal halides Grube, Karl; Leffler, Amos J.
Procedure for micro preparation of metal halides.
Grube, Karl; Leffler, Amos J. J. Chem. Educ. 1993, 70, A204.
Laboratory Equipment / Apparatus |
Metals |
Synthesis |
Microscale Lab
|
Converting to a microscale laboratory with improvised equipment Crouch, R. David; Nelson, Todd D.; Kinter, Chris M.
To avoid the expenses normally involved in converting experiments over to the microscale, these authors suggest some "improvised" microscale equipment.
Crouch, R. David; Nelson, Todd D.; Kinter, Chris M. J. Chem. Educ. 1993, 70, A203.
Microscale Lab |
Laboratory Equipment / Apparatus
|
A microscale suction filtration apparatus Winkel, Cleve R.
This apparatus helps avoid some of the troublesome aspects of filtration that occur during the transfer stage.
Winkel, Cleve R. J. Chem. Educ. 1993, 70, A161.
Laboratory Equipment / Apparatus |
Microscale Lab |
Separation Science
|
Practical adaptor for heating mantles Marin-Puga, Gustavo; Svoronos, Paris
Since most current undergraduate organic labs use both micro and macro scale experiments, the availability of different size heating mantles become necessary. This article suggests a way around the potential problems, especially among third world countries where heating mantles are expensive.
Marin-Puga, Gustavo; Svoronos, Paris J. Chem. Educ. 1993, 70, 428.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Cutting filter paper for microscale use Englund, Charles R.
Using a cork borer to cut filter paper for microscale use.
Englund, Charles R. J. Chem. Educ. 1992, 69, A314.
Laboratory Equipment / Apparatus |
Laboratory Management |
Microscale Lab
|
Microscale filtration Duarte, Frederick F.; McCoy, Layton L.; Popp, Frank D.
Alternative to Craig tubes or filtered Pasteur pipets.
Duarte, Frederick F.; McCoy, Layton L.; Popp, Frank D. J. Chem. Educ. 1992, 69, A314.
Separation Science |
Microscale Lab |
Laboratory Equipment / Apparatus
|
A simple and inexpensive gas trap or gas inlet for microscale work Jacob, Linda A.
A simple and inexpensive device can be constructed from an Eppendorf ultramicropipet instead of a syringe needle.
Jacob, Linda A. J. Chem. Educ. 1992, 69, A313.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Improvements in the ultra-micro boiling-point technique Rausch, Gerald; Tonnis, John
Applying commercial micropipets to solve problems in using capillary tubes.
Rausch, Gerald; Tonnis, John J. Chem. Educ. 1992, 69, A264.
Microscale Lab |
Laboratory Equipment / Apparatus
|
Microscale techniques for determination of magnetic susceptibility. Woolcock, John; Zafar, Abdullah.
Theory, operation, and application of the MSB-1 balance, a new type of magnetic susceptibility balance.
Woolcock, John; Zafar, Abdullah. J. Chem. Educ. 1992, 69, A176.
Microscale Lab |
Magnetic Properties |
Coordination Compounds |
Transition Elements |
Laboratory Equipment / Apparatus
|
The microscale organic laboratory: A very simple method of filtration and recrystallization Laporterie, A.
The following inexpensive system can be used to perform filtration, washing and crystallization without the loss of product in an organic lab.
Laporterie, A. J. Chem. Educ. 1992, 69, A42.
Microscale Lab |
Laboratory Equipment / Apparatus |
Crystals / Crystallography
|
An evaluation of drop counting as a volume measurement Ealy, James; Pickering, Miles
Drop counting as a volume measurement has gained popularity, especially in high school laboratories. These authors investigate the technique.
Ealy, James; Pickering, Miles J. Chem. Educ. 1991, 68, A120.
Microscale Lab |
Laboratory Equipment / Apparatus |
Quantitative Analysis
|
A simple sublimation apparatus Brouwer, Henry
A simple sublimation apparatus for use in organic chemistry.
Brouwer, Henry J. Chem. Educ. 1991, 68, A62.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Inert atmosphere techniques for the microscale laboratory Newton, Thomas A.
A system developed to introduce students to working under inert atmosphere.
Newton, Thomas A. J. Chem. Educ. 1991, 68, A60.
Laboratory Equipment / Apparatus |
Instrumental Methods |
Microscale Lab
|
Rotation direction of magnetic stirrers and stirrer/hot plates for bottom-driven spinning-band distillation columns Rothchild, Robert
Information regarding stirring direction of magnetic stirrers and stirrer/hot plates for bottom-driven spinning-band distillation columns.
Rothchild, Robert J. Chem. Educ. 1990, 67, A305.
Microscale Lab |
Laboratory Equipment / Apparatus
|
Use of a convenient disposable filter "tip" with a Pasteur filter pipet for microscale laboratory techniques Rothchild, Robert
The filter "tip" consists of a small wad of cotton packed into a short length of polyethylene tubing, with an inner diameter selected to fit over the tip of the Pasteur pipet.
Rothchild, Robert J. Chem. Educ. 1990, 67, 425.
Microscale Lab |
Laboratory Equipment / Apparatus
|
Design of a microscale sublimator Winston, Anthony
Sublimation is particularly useful when unfavorable solubility properties may lead to high losses of material during crystallization.
Winston, Anthony J. Chem. Educ. 1990, 67, 162.
Microscale Lab |
Phases / Phase Transitions / Diagrams |
Laboratory Equipment / Apparatus |
Precipitation / Solubility
|
Robust micro-lab sand baths Ruekberg, Ben
The Comet Individual Egg Poacher can be used instead of crystallizing dishes which break easily in a sand bath.
Ruekberg, Ben J. Chem. Educ. 1989, 66, 89.
Microscale Lab |
Laboratory Equipment / Apparatus
|
A microscale immersion well for photochemical reactions Penn, John H.; Orr, Richard D.
In this document, the authors report the development of a microscale photochemical immersion well that incorporates all of the traditional advantages of microscale glassware, as well as offers significant developments for the pedagogy of organic photochemsitry.
Penn, John H.; Orr, Richard D. J. Chem. Educ. 1989, 66, 86.
Photochemistry |
Laboratory Equipment / Apparatus |
Microscale Lab
|
The use of solid aluminum heat transfer devices in organic chemistry laboratory instruction and research Lodwig, Siegfried, N.
The aluminum plate is cheap, effective, clean, and pleasing to the eye, as well as having applications in synthetic work.
Lodwig, Siegfried, N. J. Chem. Educ. 1989, 66, 77.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Efficient distillation in the microscale laboratory Lawler, Ronald G.; Parker, Kathlyn A.
Simple distillation of a small quantity of liquid reaction product is a technique without strong precedent; the authors describe their solution to this problem.
Lawler, Ronald G.; Parker, Kathlyn A. J. Chem. Educ. 1986, 63, 1012.
Microscale Lab |
Laboratory Equipment / Apparatus
|
A simple semimicro distillation apparatus Henin, F.; Hericher, M.; Muzart, J.
A small distillation unit for fractional distillation of small amounts of material under vacuum.
Henin, F.; Hericher, M.; Muzart, J. J. Chem. Educ. 1982, 59, 164.
Separation Science |
Microscale Lab |
Laboratory Equipment / Apparatus
|
Efficient use of the Kofler Heizbank melting point apparatus Brown, W. H.
Using of the Kofler Hotbench as a micro drying oven.
Brown, W. H. J. Chem. Educ. 1980, 57, 231.
Laboratory Equipment / Apparatus |
Physical Properties |
Microscale Lab
|
A disposable, slow-addition funnel for small-scale preparative reactions Magnusson, Gran
Uses two disposable pipets connected by a piece of latex tubing for slow additions of small volumes of reagent.
Magnusson, Gran J. Chem. Educ. 1979, 56, 410.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Technique for simultaneously stirring and monitoring the temperatures of semimicro reaction mixtures Lutz, Wilson B.
The stirring blade and thermometer are combined into a single rotating unit.
Lutz, Wilson B. J. Chem. Educ. 1977, 54, 356.
Microscale Lab |
Laboratory Equipment / Apparatus |
Laboratory Management
|
A convenient device for drying microliter syringes Koshy, Kalavelil M.
A convenient device for drying microliter syringes.
Koshy, Kalavelil M. J. Chem. Educ. 1975, 52, 395.
Laboratory Equipment / Apparatus |
Laboratory Management |
Microscale Lab
|
Meso analysis Janardhan, P. B.
Description of equipment and procedures for chemical analysis on a semimicro scale.
Janardhan, P. B. J. Chem. Educ. 1975, 52, 333.
Laboratory Equipment / Apparatus |
Laboratory Management |
Microscale Lab
|
Micro hot stage Klimis, Dorothy J.; Tibbetts, Donald L.
A micro hot stage for determining the melting points of very small quantities.
Klimis, Dorothy J.; Tibbetts, Donald L. J. Chem. Educ. 1973, 50, 576.
Laboratory Equipment / Apparatus |
Physical Properties |
Microscale Lab
|
A convenient method for handling small amounts of gaseous reagents Kramer, Gary W.
A solution to the problem of handling small amounts of gases that are not easily generated.
Kramer, Gary W. J. Chem. Educ. 1973, 50, 227.
Laboratory Management |
Laboratory Equipment / Apparatus |
Gases |
Microscale Lab
|
Microreactor with needle valve Razo, Lorenzo
Design for a microreactor with needle valve.
Razo, Lorenzo J. Chem. Educ. 1973, 50, 73.
Laboratory Equipment / Apparatus |
Microscale Lab |
Laboratory Management
|
A semi-micro filtration apparatus Kocon, Richard W.
An inexpensive vacuum filtration apparatus that combines the features of small surface area in the filter, rapid passage of solution through the filter, and concentration of the filtrate in a relatively small area.
Kocon, Richard W. J. Chem. Educ. 1969, 46, 516.
Laboratory Equipment / Apparatus |
Microscale Lab |
Separation Science
|
A micro filter Lloyd, Winston D.
Describes an inexpensive micro filter that can be assembled by the student.
Lloyd, Winston D. J. Chem. Educ. 1968, 45, 115.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Techniques for internal distillation-condensation Johnson, B. L.
Presents modifications and apparatus for the semi-micro collection of pure substances and macro extraction.
Johnson, B. L. J. Chem. Educ. 1967, 44, 465.
Laboratory Equipment / Apparatus |
Phases / Phase Transitions / Diagrams |
Microscale Lab |
Separation Science
|
Semi-micro vapor density apparatus: A rapid technique Svec, Harry J.; Peterson, Norman C.
The authors have developed a rapid technique to determine the molecular weight of 5 to 15 microliters of a volatile compound with a precision of about +/- 2%.
Svec, Harry J.; Peterson, Norman C. J. Chem. Educ. 1965, 42, 336.
Microscale Lab |
Laboratory Equipment / Apparatus
|
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
|
Letters Helliwell, G. P.
The author seeks to clarify certain facts in an earlier published article.
Helliwell, G. P. J. Chem. Educ. 1964, 41, 575.
Microscale Lab |
Reactions |
Laboratory Equipment / Apparatus |
Laboratory Management
|
A convenient micro filter-stick Cooper, Paul D.
This brief note describes a device that can serve to replace conventional sintered filter-sticks.
Cooper, Paul D. J. Chem. Educ. 1964, 41, 85.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Microchemical applications of the H-flask Polya, J. B.
Illustrates and describes the microchemical applications of the H-flask.
Polya, J. B. J. Chem. Educ. 1962, 39, 294.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Perforated board mounting for semimicro set-ups Beech, J. A.
Presents a semimicro mounting system that is versatile and portable.
Beech, J. A. J. Chem. Educ. 1962, 39, 293.
Laboratory Equipment / Apparatus |
Microscale Lab
|
A portable semimicro reaction assembly Stock, John T.; Fill, M. A.
Displays, describes, and itemizes the components of a portable semimicro reaction assembly.
Stock, John T.; Fill, M. A. J. Chem. Educ. 1959, 36, 194.
Laboratory Equipment / Apparatus |
Microscale Lab
|
A microreaction block Schultz, Harry P.
The author has developed an electrically heated reaction block for executing numerous laboratory operations on a micro scale, including distillations, refluxings, sealed tube reactions, sublimations, recrystallizations, drying of analytical samples, and determination of melting points.
Schultz, Harry P. J. Chem. Educ. 1958, 35, 564.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Cell for electrometric microtitrations Garbarini, Victor C.; Heilveil, Sidney
It is difficult to place all the elements required for microtitrations in a cell of satisfactory size; the cell described eliminates most of those difficulties.
Garbarini, Victor C.; Heilveil, Sidney J. Chem. Educ. 1958, 35, 206.
Electrochemistry |
Electrolytic / Galvanic Cells / Potentials |
Titration / Volumetric Analysis |
Quantitative Analysis |
Laboratory Equipment / Apparatus |
Microscale Lab
|
Apparatus for semimicro low temperature crystallizations Bluhm, Aaron L.
An apparatus suitable for the crystallization of small quantities of materials at low temperatures is described.
Bluhm, Aaron L. J. Chem. Educ. 1958, 35, 200.
Laboratory Equipment / Apparatus |
Crystals / Crystallography |
Microscale Lab
|
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
|
An apparatus for the microdetermination of melting points Jennings, Walter G.
Presents a microscope-mounted melting point apparatus constructed from a machined aluminum block.
Jennings, Walter G. J. Chem. Educ. 1957, 34, 95.
Laboratory Equipment / Apparatus |
Physical Properties |
Phases / Phase Transitions / Diagrams |
Microscale Lab
|
Heating devices for microchemical operations Stock, John T.; Fill, M. A.
Two devices provide heating for microchemical operations.
Stock, John T.; Fill, M. A. J. Chem. Educ. 1956, 33, 619.
Laboratory Equipment / Apparatus |
Microscale Lab
|
A micro gas generator Baker, Louis C. W.; Stouffer, John E.
This micro Kipp generator for H2S could be modified for use with CO2 and other gases.
Baker, Louis C. W.; Stouffer, John E. J. Chem. Educ. 1954, 31, 593.
Laboratory Equipment / Apparatus |
Gases |
Microscale Lab
|
Small-scale techniques in the teaching of organic chemistry Stock, John T.
Describes the glassware and other equipment used in micro- and semimicro chemical techniques in organic chemistry.
Stock, John T. J. Chem. Educ. 1953, 30, 296.
Laboratory Equipment / Apparatus |
Microscale Lab
|
Semimicro laboratories Chelberg, Raymond R.; Anderson, John E.
Describes the equipment and preparations needed to conduct semimicro laboratories in general, organic, and analytical chemistry.
Chelberg, Raymond R.; Anderson, John E. J. Chem. Educ. 1952, 29, 189.
Microscale Lab |
Laboratory Management |
Laboratory Equipment / Apparatus
|
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