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Incorporation of Gas Chromatography-Mass Spectrometry into the Undergraduate Organic Chemistry Laboratory Curriculum
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Giarikos, Dimitrios G.; Patel, Sagir; Lister, Andrew; Razeghifard, Reza – Journal of Chemical Education, 2013
Gas chromatography-mass spectrometry (GC-MS) is a powerful analytical tool for detection, identification, and quantification of many volatile organic compounds. However, many colleges and universities have not fully incorporated this technique into undergraduate teaching laboratories despite its wide application and ease of use in organic…
Descriptors: College Science, Spectroscopy, Science Instruction, Organic Chemistry
Use of NMR and NMR Prediction Software to Identify Components in Red Bull Energy Drinks
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Simpson, Andre J.; Shirzadi, Azadeh; Burrow, Timothy E.; Dicks, Andrew P.; Lefebvre, Brent; Corrin, Tricia – Journal of Chemical Education, 2009
A laboratory experiment designed as part of an upper-level undergraduate analytical chemistry course is described. Students investigate two popular soft drinks (Red Bull Energy Drink and sugar-free Red Bull Energy Drink) by NMR spectroscopy. With assistance of modern NMR prediction software they identify and quantify major components in each…
Descriptors: Prediction, Organic Chemistry, Computer Software, Laboratory Experiments
Photolysis of 4-Phenyl-1,3-dioxolan-2-one: An Undergraduate Experiment in Free Radical Chemistry.
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White, Rick C.; Ma, Sha – Journal of Chemical Education, 1988
Describes a photochemistry experiment designed to introduce photochemical techniques and experience free radical chemistry. Selects Nuclear Magnetic Resonance spectroscopy for the analysis. This activity is suggested for use in an upper level undergraduate organic course. (MVL)
Descriptors: Chemistry, College Science, Experiments, Higher Education
An Improved Experiment to Illustrate the Effect of Electronegativity on Chemical Shift.
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Boggess, Robert K. – Journal of Chemical Education, 1988
Describes a method for using nuclear magnetic resonance to observe the effect of electronegativity on the chemical shift of protons in similar compounds. Suggests the use of 1,3-dihalopropanes as samples. Includes sample questions. (MVL)
Descriptors: Chemical Analysis, Chemistry, College Science, Experiments
Quantitative Analysis by Isotopic Dilution Using Mass Spectroscopy: The Determination of Caffeine by GC-MS.
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Hill, Devon W.; And Others – Journal of Chemical Education, 1988
Describes a laboratory technique for quantitative analysis of caffeine by an isotopic dilution method for coupled gas chromatography-mass spectroscopy. Discusses caffeine analysis and experimental methodology. Lists sample caffeine concentrations found in common products. (MVL)
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
Aromatic Ring Currents Illustrated--NMR Spectra of Tin(IV) Porphyrin Complexes. An Advanced Undergraduate Experiment.
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Arnold, Dennis P. – Journal of Chemical Education, 1988
Attempts to show that in the closed loops of cyclic structures the protons situated in conic regions above and below the ring will be shielded. Uses the diamagnetic and air stable octahedral tin(IV) complexes of porphyrins for study. Notes complexes crystallize easily and offer spectacular purple colors. (MVL)
Descriptors: Chemical Analysis, Chemical Reactions, Chemistry, College Science
An NMR Determination of Optical Purity, An Advanced Undergraduate Laboratory Experiment
Jacobus, John; Raban, Morton – J Chem Educ, 1969
Descriptors: Chemical Analysis, College Science, Instrumentation, Laboratory Procedures
A Combustion-Gas Chromatography Experiment
Bard, James R. – J Chem Educ, 1969
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
Quantitative Gas Chromatography Using Peak Heights and Relative Response Factors: An Undergraduate Student Experiment
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Pacer, Richard A. – Journal of Chemical Education, 1976
Describes the quantitative analysis of a gaseous mixture using peak heights and ratios between the peak heights. (MLH)
Descriptors: Chemical Analysis, Chemistry, Chromatography, College Science
Topics in Chemical Instrumentation. XCVIII. Experiments Involving Thermal Methods of Analysis for Undergraduate Chemistry Laboratories.
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Ewing, Galen W., Ed.; Earnest, Charles M. – Journal of Chemical Education, 1978
Describes some undergraduate laboratory experiments on thermoanalytical techniques which deal with both organic and inorganic compounds. (GA)
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education
An Analysis of a Commercial Furniture Refinisher: A Comprehensive Introductory NMR Experiment.
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Markow, Peter G.; Cramer, John A. – Journal of Chemical Education, 1983
Describes a comprehensive nuclear magnetic resonance (NMR) experiment designed to introduce undergraduate organic chemistry students to measurement/interpretation of NMR parameters. Students investigate chemical shift analysis, spin-spin coupling, peak integrations, effect of deuterium oxide extraction, and comparisons with literature spectra;…
Descriptors: Chemical Analysis, Chemistry, College Science, Higher Education