TIGER

Journal Articles: 96 results
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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, Gran
Uses two disposable pipets connected by a piece of latex tubing for slow additions of small volumes of reagent.
Magnusson, Gran 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