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 | |
| 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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Cite this
Morita, M., Niwa, O., Tou, S., & Watanabe, N. (1999). Nickel content dependence of electrochemical behavior of carbohydrates on a titanium-nickel alloy electrode and its application to a liquid chromatography detector. Journal of Chromatography A, 837(1-2), 17-24. https://doi.org/10.1016/S0021-9673(99)00047-3