高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (12): 1943.

• 研究简报 • 上一篇    下一篇

聚血红素修饰电极对儿茶酚类化合物和抗坏血酸氧化的电催化作用研究

白燕1, 莫金垣2, 程锵1, 周艳晖1   

  1. 1. 暨南大学化学系, 广州, 510632;
    2. 中山大学化学系, 广州, 510275
  • 收稿日期:1998-01-25 出版日期:1998-12-24 发布日期:1998-12-24
  • 通讯作者: 白燕,女,37岁,副教授.
  • 作者简介:白燕,女,37岁,副教授.

Studies on Electrocatalytic Oxidation of Catechols and Ascorbic acid on the Polymeric Heme Film Modified Electrode

BAI Yan1, MO Jin-Yuan2, CHENG Qiang1, ZHOU Yan-Hui1   

  1. 1. Department of Chemistry, Jinan University, Guangzhou, 510632;
    2. Department of Chemistry, Zhongshan University, Guangzhou, 510275
  • Received:1998-01-25 Online:1998-12-24 Published:1998-12-24

关键词: 血红素, 化学修饰电极, 电催化氧化, 儿茶酚类化合物, 抗坏血酸

Abstract: The polymeric heme film modified glassy carbon electrode (polyheme/GC) was prepared by cyclic voltammetry. The electrochemical behavior of catechols (catechol, dopamine, epinephrine) and ascorbic acid on the polyheme/GCelectrode has been investigated. The polyheme/GCelectrode has a good electrocatalytic oxidation to catechols and ascorbic acid. On the polyheme/GCelectrode, the oxidation peak currents of catechols and ascorbic acid increase and the oxidation peak potentials of catechols and ascorbic acid shift negatively about 180 mVand 370 mV,respectively, comparing with that on the GCelectrode. In the mixed solution containing catechols and ascorbic acid, the two oxidation peaks could be separated about 130 mVon the polyheme/GCelectrode.

Key words: Heme, Chemically modified electrode, Electrocalytic oxidation, Catechols, Ascorbic acid

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