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  Home > JCE Print > Journal of Chemical Education > Issues > 1996  > November  >
In the Laboratory
Oxygenates in Gasoline: A Versatile Experiment Using Gas Chromatography
Linda C. Brazdil
Department of Chemistry, John Carroll University, University Heights, OH 44118-4581
Cover
November 1996
Vol. 73 No. 11
p. 1056
Abstract
An experiment for introductory chemistry in which oxygenates are extracted from gasoline and analyzed by gas chromatography is described. The extraction of oxygenates from gasoline with water prior to analysis by gas chromatography allows for their easy identification and quantification since only the oxygenates dissolve in water. Both qualitative and quantitative versions of the experiment are described. Calculations which can be used to determine the weight percent of methanol, ethanol, or methyl tert-butyl ether (MTBE) in gasoline samples are given. The use of this experiment in discussing good laboratory technique, separation of mixtures, chromatography, the use of calibration curves, and error analysis is presented. The value of this experiment because of its current interest, its potential for allowing students to see the utility outside the classroom of what they are learning, and its connection to the political and social issues involved in addition of oxygenates to gasoline is also discussed.
More Information
*  Citation
 Brazdil, Linda C. J. Chem. Educ. 1996 73 1056.
*  Keywords
 Analytical Chemistry
*  History
 Created:
Last Updated:		 August 5, 1999
February 21, 2006
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