Copper electrodes for stable subpicomole detection of carbohydrates in high-performance liquid chromatography

Kenji Kano, Kazuyoshi Takagi, Kumi Inoue, Tokuji Ikeda, Teruhisa Ueda

研究成果: Article査読

32 被引用数 (Scopus)

抄録

A new pretreatment of copper (Cu) electrodes used for catalytic oxidation of carbohydrates is presented, which involves superficial polishing of the electrochemically-oxidized Cu electrode and then air-oxidation at 100°C for 3 h. This pretreatment allows highly sensitive and stable detection of carbohydrates at 0.45 V (vs. Ag/AgCl/Sat. KCl) in anion-exchange high-performance liquid chromatography. Glucose was detected at concentration levels as low as 0.2 pmole with a dynamic range up to 10,000 pmole over a period of 1 month. The change in the electrode surface state during the pretreatment is discussed from the electrochemical point of view.

本文言語English
ページ(範囲)53-57
ページ数5
ジャーナルJournal of Chromatography A
721
1
DOI
出版ステータスPublished - 1996 1月 15
外部発表はい

ASJC Scopus subject areas

  • 分析化学
  • 生化学
  • 有機化学

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