Anion selective polymeric membrane electrodes based on metallocenes

Hideaki Hisamoto, Dwi Siswanta, Hiroshi Nishihara, Koji Suzuki

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Seven types of metallocenes (bis-cyclopentadienyl compounds) were used as anion ionophores for polymeric membrane electrodes and their anion selectivities were examined. The electrodes based on metallocenes exhibited different selectivity behaviour compared with the electrode using a classical anion exchanger such as tetraalkyl ammonium. The selectivity for tetraalkyl ammonium simply obeys the lipophilicity of anions, specifically, hafnocene dichloride exhibited a highly specific response to anions that have π-electrons such as the salicylate ion. This electrode demonstrated a Nernstian response to the salicylate anion ranging from 1 × 10-3 to 1× 10-1 M in a buffered solution (0.05 M Tris-H2SO4) adjusted to a pH of 7.4.

Original languageEnglish
Pages (from-to)171-176
Number of pages6
JournalAnalytica Chimica Acta
Volume304
Issue number2
DOIs
Publication statusPublished - 1995 Mar 30

Keywords

  • Ion selective electrodes
  • Metallocenes
  • Salicylate

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Environmental Chemistry
  • Spectroscopy

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