Title: Amino Acid Transport through Cation Exchange Membranes: Effects of pH on Interfacial Transport
Abstract: We present a series of experiments especially designed to show the effects of pH on the interfacial transport of glycine through a cation exchange membrane. The experimental results are explained qualitatively by using a theoretical model which incorporates the equilibrium dissociation equations for the fraction of amino acid forms at different pH values, a rate equation for the membrane interfacial transport based on the interfacial chemical reaction, and the Nernst–Planck flux equations for the ion transport through the bulk of the membrane. The results appear to indicate that the rate-limiting step in the amino acid transport process could be the rate at which glycine exits the membrane, and they contribute to a better understanding of amino acid permeation across charged membranes.
Publication Year: 1997
Publication Date: 1997-04-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 36
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