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  Home > JCE Print > Journal of Chemical Education > Issues > 2001  > September  >
In the Laboratory
Topics in Chemical Instrumentation
Determination of Ethanol in Alcohol Samples Using a Modular Raman Spectrometer
Caryn L. Sanford* and Brent A. Mantooth
Department of Chemistry, Mercer University, Macon, GA 31207

Bradley T. Jones
Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109

Cover
September 2001
Vol. 78 No. 9
p. 1221
Abstract
This paper describes an inexpensive modular Raman spectrometer for use in the undergraduate laboratory. An Ar+ ion laser operating at 105-mW is used as the source. A small, computer-controlled CCD spectrometer is used as the detector. The instrumental design is simple enough that students can readily assemble the components themselves, but they require assistance to align the optics. Because of the samples chosen, no sample preparation is necessary. The analytical performance of the instrument was evaluated by determining the ethanol content in vodka, gin, Everclear, rum, and whiskey .
More Information
*  Citation
 Sanford, Caryn L.; Mantooth, Brent A.; Jones, Bradley T. J. Chem. Educ. 2001 78 1221.
*  Keywords
 Analytical Chemistry; Instrumental Methods; Laboratory Instruction; Lasers / Laser Spectroscopy; Quantitative Analysis
*  History
 Created:
Last Updated:		 August 14, 2001
August 31, 2005
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