MECHANISM OF TRACE COUNTERION TRANSPORT THROUGH ION-EXCHANGE MEMBRANES

被引：33
作者：
BLAEDEL, WJ
HAUPERT, TJ
EVENSON, MA
机构：
[1] Chemistry Department, University of Wisconsin, Madison
来源：
ANALYTICAL CHEMISTRY | 1969年 / 41卷 / 04期
关键词：
D O I：
10.1021/ac60273a006
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
An equation for the flux of a trace counterion between two solutions separated by an ion-exchange membrane is derived and experimentally verified. The flux equation is based on a mechanism that considers the heterogeneous surface exchange reactions in addition to the diffusional processes occurring within the membrane and within the stationary liquid films adjacent to the membrane surfaces. The equation is tested using both synthetic anion- and cation-exchange membranes for systems containing singly and multiply charged trace and bulk ions. Experimental evidence is also presented to indicate the influence of the surface exchange reaction on the overall rate of ion transport. © 1969, American Chemical Society. All rights reserved.
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页码：583 / &
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