Anion-selective electrodes based on a gold(III)-triisobutylphosphine sulfide complex

Antonio Florido, Leonidas G. Bachas, Manuel Valiente, Isabel Villaescusa

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

Ion-selective electrodes using poly(vinyl chloride) membranes impregnated with a gold(III)-triisobutylphosphine sulfide complex are described. These electrodes were characterized in both conventional and flow-through tubular configurations. The response of the electrodes was Nernstian for thiocyanate and tetrachloroaurate(III) and the detection limit was 1.1 × 10-6 mol dm-3. Flow-through tubular electrodes were used as potentiometric detectors in flow-injection analysis, resulting in a reproducible (peak heights within ± 1 mV for three repeated injections at a given concentration level) and rapid (sample throughputs around 80 h-1) technique for the determination of both anions.

Original languageEnglish (US)
Pages (from-to)2421-2425
Number of pages5
JournalThe Analyst
Volume119
Issue number11
DOIs
StatePublished - Dec 1 1994
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy
  • Electrochemistry

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