RESPONSE TIME CURVES OF ION-SELECTIVE ELECTRODES.

Erno Lindner, K. Tóth, Erno Pungor

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Abstract

On the basis of response time data or supposed electrode mechanisms, the ion-selective electrodes were divided into different groups. For the evaluation of the response time curves of electrodes, at which the rate-determining step is the diffusion of the appropriate ion in the electrode membrane phase (neutral carrier-, and covered surface electrodes), a diffusion model has been used. The response characteristics of electrodes operating on ion-exchange equilibria (e. g. , precipitate based electrodes etc. ) have been interpreted with the help of a first-order kinetic equation. In addition to this, a so-called multielectrode model has been worked out for the general interpretation of the electrode response if the rate determining sequence of the overall potential determining step is covered by a diffusion process through the adhering laminary layer at the electrode surface.

Original languageEnglish
Pages (from-to)1071-1078
Number of pages8
JournalAnalytical Chemistry
Volume48
Issue number7
Publication statusPublished - Jun 1976

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ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Lindner, E., Tóth, K., & Pungor, E. (1976). RESPONSE TIME CURVES OF ION-SELECTIVE ELECTRODES. Analytical Chemistry, 48(7), 1071-1078.