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

doi:10.1016/S0021-9673(99)00047-3

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 journal › Article › peer-review

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 language	English
Pages (from-to)	17-24
Number of pages	8
Journal	Journal of Chromatography A
Volume	837
Issue number	1-2
DOIs	https://doi.org/10.1016/S0021-9673(99)00047-3
Publication status	Published - 1999 Apr 2
Externally published	Yes

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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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.",

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AU - Morita, Masao

AU - Niwa, Osamu

AU - Tou, Shokou

AU - Watanabe, Noriyuki

PY - 1999/4/2

Y1 - 1999/4/2

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KW - Detection, LC

KW - Electrochemical detection

KW - Electrodes

KW - Nickel-titanium electrode

KW - Titanium-nickel electrode

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

Abstract

Keywords

ASJC Scopus subject areas

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