Ion Transport in Asymmetric Artificial Membranes Mediated by Neutral Carriers

  • W. E. Morf
  • H. Ruprecht
  • P. Oggenfuss
  • W. Simon

Abstract

Valuable information on the selectivity behavior and the response mechanisms of analytically relevant neutral carrier membrane electrodes has been obtained from ion transport studies performed on the corresponding cation-selective membranes [9,10,15,16]. In electrodialysis experiments, the permeation of cations was induced by a transmembrane potential gradient, whereas in zero current countertransport systems, cations were driven by an oppositely directed flow of hydrogen ions, as induced by a pH gradient. The selectivity of ion transport was usually found to correlate with the potentiometric ion selectivity of the corresponding membrane electrodes [9, 10, 15, 16]. So far, virtually all experiments have concentrated on homogeneous PVC membranes.

Keywords

Permeability Entropy Migration Phthalate Diamide 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • W. E. Morf
  • H. Ruprecht
  • P. Oggenfuss
  • W. Simon

There are no affiliations available

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