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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > April  >
Research: Science and Education
Redox Buffer Strength
Robert de Levie
Department of Chemistry, Georgetown University, Washington, DC 20057
Cover
April 1999
Vol. 76 No. 4
p. 574
Abstract
The proper functioning of enzymes in bodily fluids requires that the pH be maintained within rather narrow limits. The first line of defense against large pH fluctuations in such fluids is the passive control provided by the presence of pH buffers. The ability of pH buffers to stabilize the pH is indicated by the buffer value b introduced in 1922 by van Slyke. It is equally important for many enzymes that the redox potential is kept within a narrow range. In that case, stability of the potential is most readily achieved with a redox buffer. In this communication we define the redox buffer strength by analogy with acid-base buffer strength.
More Information
*  Citation
 de Levie, Robert. J. Chem. Educ. 1999 76 574.
*  Keywords
 Analytical Chemistry; Aqueous Solution Chemistry; Electrochemistry; Redox Reactions; buffering action
*  History
 Created:
Last Updated:		 June 14, 1999
June 23, 2005
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