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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > June  >
In the Laboratory
Analysis of Diet Tonic Water Using Capillary Electrophoresis. An Undergraduate Instrumental Analysis Experiment
Harvey B. Herman, John R. Jezorek, and Zhe Tang
Department of Chemistry, University of North Carolina at Greensboro, Greensboro, NC 27402-6170
Cover
June 2000
Vol. 77 No. 6
p. 743
Abstract
An experiment for instrumental analysis is described in which components of diet tonic water are determined using capillary electrophoresis. Separation of quinine, saccharin, and benzoate in pH 7 phosphate buffer, with phenol as internal standard, is accomplished in about 12 minutes. The equipment requirements are modest: UV detection on an unmodified column. One of the components, quinine, is quantitated using a four-point standard addition calibration curve.
Supplement
Supplemental material includes a student handout that contains a complete description of the experiment.
*  Contents
*  Download
supp743.pdf

supp743.sit

supp743.zip
More Information
*  Citation
 Herman, Harvey B.; Jezorek, John R.; Tang, Zhe. J. Chem. Educ. 2000 77 743.
*  Keywords
 Instrumental Methods; Laboratory Instruction; Consumer Chemistry; Electrophoresis; Analytical Chemistry
*  History
 Created:
Last Updated:		 April 25, 2000
August 31, 2005
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