The behaviour of the silver sulphide precipitate-based ion-selective electrode in the low concentration range

E. G. Harsányi, K. Tóth, E. Pungor

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Abstract

The anomalous behavior of the precipitate-based silver sulphide ion-selective electrode in the low concentration range of silver and sulphide ions is described. The excess of silver ion at the electrode surface, caused by adsorption or oxidation, is responsible for the deviations from the ideal Nernstian response. The adsorption/desorption processes were studied in a microcell by using combined potentiometric and atomic absorption measurements. The oxidation-reduction processes were studied by using polarized electrodes.

Original languageEnglish
Pages (from-to)333-341
Number of pages9
JournalAnalytica Chimica Acta
Volume161
Issue numberC
DOIs
Publication statusPublished - 1984

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

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