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Abstract <p>The paper presents the results of the numerical simulation performed in a unidimensional formulation for a cell containing an ion-selective region. The employed mathematical model takes into account the nonideal selectivity of the ion-exchange region and the presence of a convective electrolyte solution flow through it. The flow has been found to influence the selectivity of the ion-exchange region. The electric current through the system may be both enhanced and diminished depending on a realized current regime, namely, underlimiting or limiting. The understanding of this effect will be useful for practical applications, such as analyte preconcentration systems in microlaboratories for chemical analysis of biological liquids and electrobaromembrane separation systems.</p>

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Simulating the Influence of Convective Flows through an Ion-Selective Region on Electric Current Regimes in Binary Electrolyte Solutions

  • 期刊论文

  • 发表日期：

    2025年7月10日

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  • G. S. Ganchenko,
  • V. S. Shelistov,
  • I. I. Olberg,
  • I. V. Morshneva,
  • E. A. Demekhin

摘要

Abstract

The paper presents the results of the numerical simulation performed in a unidimensional formulation for a cell containing an ion-selective region. The employed mathematical model takes into account the nonideal selectivity of the ion-exchange region and the presence of a convective electrolyte solution flow through it. The flow has been found to influence the selectivity of the ion-exchange region. The electric current through the system may be both enhanced and diminished depending on a realized current regime, namely, underlimiting or limiting. The understanding of this effect will be useful for practical applications, such as analyte preconcentration systems in microlaboratories for chemical analysis of biological liquids and electrobaromembrane separation systems.