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  Home > JCE Print > Journal of Chemical Education > Issues > 2002  > December  >
In the Laboratory
Determination of a Diffusion Coefficient by Capillary Electrophoresis. An Experiment for the Physical and Biophysical Chemistry Laboratories
Kathryn R. Williams, Bhavin Adhyaru, Igor German, and Thomas Russell
Department of Chemistry, University of Florida, Gainesville, FL 32611-7200
Cover
December 2002
Vol. 79 No. 12
p. 1475
Abstract
Students measure the diffusion coefficient of dopamine (3-hydroxytyramine) by capillary electrophoresis using three evaluation methods: single-point, graphical, and stopped migration. The experiment combines instruction of modern instrumentation with the determination of a biologically significant physical constant.
Supplement
Instructions for the students and notes for the instructor are available.
*  Contents JCE2002p1475W.doc (Microsoft Word)
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*  Citation
 Williams, Kathryn R.; Adhyaru, Bhavin; German, Igor; Russell, Thomas. J. Chem. Educ. 2002 79 1475.
*  Keywords
 Biophysical Chemistry; Diffusion; Electrophoresis; Laboratory Instruction; Physical Chemistry
*  History
 Created:
Last Updated:		 October 29, 2002
March 16, 2005
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