Ion-selective Electrodes in Organic Analysis-Determination of Alcohols via in Situ Generation of Xanthates under Phase-transfer Catalysis

Wing Hong CHAN*, Albert W M LEE, King Sum Lam, Chi Lam Tse

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Low relative molecular mass alcohols, after in situ derivatisation to the corresponding xanthates (dithiocarbonates) under phase-transfer catalysis, have been determined by a PVC membrane xanthate-selective zlectrode based on tetraheptylammonium O-ethyl xanthate. The xanthate-selective electrode exhibited a Nernstian response down to 1 × 10-4 M alcohol with an average slope of 57 mV per concentration decade at 25 °C. The response time was less than 30 s. The electrode worked satisfactorily for the determination of primary as well as secondary alcohols.

Original languageEnglish
Pages (from-to)233-235
Number of pages3
JournalThe Analyst
Volume114
Issue number2
DOIs
Publication statusPublished - 1989

Scopus Subject Areas

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

User-Defined Keywords

  • In situ determination of alcohols
  • Organic analysis
  • Phase-transfer catalysis
  • Xanthate-selective electrode

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