Partial blocking of ion transport at the interface of an ion-selective liquid membrane electrode by neutral surfactants. Experiments and computer simulation

Qingshan Ye, A. Vincze, G. Horvai, F. A.M. Leermakers

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Lipophilic neutral surfactants of the sugar alkyl ester type are experimentally observed to substantially increase the ion transfer impedance between an aqueous solution and ion-selective electrode membranes made from plasticized PVC with neutral carrier. The magnitude of the effect depends considerably on the molecular structure and on the concentration of the surfactant. Statistical thermodynamic simulation of the experimental system agrees qualitatively with the experimental observations.

Original languageEnglish
Pages (from-to)125-132
Number of pages8
JournalElectrochimica Acta
Volume44
Issue number1
DOIs
Publication statusPublished - Sep 1 1998

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Keywords

  • Impedance
  • Ion transfer
  • Ion-selective electrode
  • Neutral surfactant

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

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