Development of hexafluoroarsenate(V) ion selective electrode and performances

Guo Xiong Zhang, Toshihiko Imato, Nobuhiko Ishibashi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A hexafluoroarsenate(V) ion selective PVC membrane electrode based on an ion pair of a lipophilic quaternary ammonium-hexafluoroarsenate is described. Three hexafluoroarsenate salts of tetradodecylammonium (TDA), triheptyldodecylammonium and trioctylmethylammomum ions are evaluated as an anion-exchange site. The TDA salt is estimated to give the best sensitivity. The linear response range of the electrode with a PVC membrane containing TDA-hexafluoroarsenate and di-2-(ethyl- hexyl)phthalate as a solvent mediator is from 10-2M down to 10-7M with a slope of 57~58 mV/decade at pH 2~12. The detection limit is 4X10-8M. The selectivity coefficients of the electrode for anions are determined by the mixed solution method. The electrode based on TDA-hexafluoroarsenate is superior with respects to sensitivity and selectivity to that based on tetradecylphosphonium-hexafluoroarsenate.

Original languageEnglish
Pages (from-to)283-285
Number of pages3
Journalbunseki kagaku
Volume38
Issue number6
DOIs
Publication statusPublished - Jan 1 1989

Fingerprint

Ion selective electrodes
Electrodes
Ions
Polyvinyl Chloride
Anions
Salts
Membranes
Ammonium Compounds
lithium hexafluoroarsenate

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

Cite this

Development of hexafluoroarsenate(V) ion selective electrode and performances. / Zhang, Guo Xiong; Imato, Toshihiko; Ishibashi, Nobuhiko.

In: bunseki kagaku, Vol. 38, No. 6, 01.01.1989, p. 283-285.

Research output: Contribution to journalArticle

Zhang, Guo Xiong ; Imato, Toshihiko ; Ishibashi, Nobuhiko. / Development of hexafluoroarsenate(V) ion selective electrode and performances. In: bunseki kagaku. 1989 ; Vol. 38, No. 6. pp. 283-285.
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