Nickel content dependence of electrochemical behavior of carbohydrates on a titanium-nickel alloy electrode and its application to a liquid chromatography detector

Masao Morita, Osamu Niwa, Shokou Tou, Noriyuki Watanabe

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

A highly sensitive amperometric detector for the liquid chromatographic analysis of carbohydrates has been developed based on the optimization of the Ni content in a Ni-Ti alloy electrode. An optimum nickel content of 30 at.% was obtained from a signal-to-noise analysis in a flow injection experiment on glucose in 0.1 M NaOH. An optimum working potential of 0.5 V vs. Ag/AgCl was obtained from a hydrodynamic voltammogram. The glucose detection limit in the flow injection analysis was 11 fmol. The electrode was applied to an LC detector with a microbore column and the detection limit was 50 fmol. Copyright (C) 1999 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)17-24
Number of pages8
JournalJournal of Chromatography A
Volume837
Issue number1-2
DOIs
Publication statusPublished - 1999 Apr 2
Externally publishedYes

Keywords

  • Carbohydrates
  • Detection, LC
  • Electrochemical detection
  • Electrodes
  • Nickel-titanium electrode
  • Titanium-nickel electrode

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Organic Chemistry

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