高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (8): 1200.

• 论文 • 上一篇    下一篇

耐尔兰A修饰碳纤维微柱电极的电化学性质研究

鞠熀先, 董灵, 陈洪渊   

  1. 南京大学化学系, 南京, 210093
  • 收稿日期:1994-08-30 修回日期:1995-01-25 出版日期:1995-08-24 发布日期:1995-08-24
  • 通讯作者: 鞠熀先,男,30岁,博士,副教授.
  • 作者简介:鞠熀先,男,30岁,博士,副教授.
  • 基金资助:

    国家自然科学青年基金

The Study on the Electrochemical Behaviour of Nile Blue A Modified Carbon Fiber Microcylinder Electrode

JU Huang-Xian, DONG Ling, CHEN Hong-Yuan   

  1. Department of Chemistry, Nanjing University, Nanjing, 210093
  • Received:1994-08-30 Revised:1995-01-25 Online:1995-08-24 Published:1995-08-24

摘要: 用循环伏安法将碳纤维微柱电极表面官能团化,利用正负离子间的静电作用将耐尔兰A修饰在碳纤维微柱电极(CFMCE)表面。对该修饰电极的电化学性质进行了研究,讨论了它的稳定性,测定了不同pH值下固定化耐尔兰A电极反应的表现电子转移速率常数κ、电荷转移系数α以及参加电极反应的H+数。实验表明:电极对血红蛋白在CFMCE上的还原有电催化作用。

关键词: 碳纤维微电极, 化学修饰微电极, 耐尔兰A, 血红蛋白, 电催化

Abstract: The functional group-COOH on carbon fiber microcylinder electrode(CFMCE)was formed by electrochemical oxidation with cyclic voltammetry, and the Nile blue Amodified CFMCE was manufactured by means of electrostatic attraction. The electrochemical behaviour of the modified electrode was studied,and its stability was discussed.The apparent standard electron transfer rate constant and charge transfer coefficient of fixed Nile blue Aat various pH, and the number of H+participating in electrode reaction were determined.The experiments indicated the modified electrode can catalyze the electrode reaction of hemoglobin at carbon fiber microcylinder electrode.

Key words: Carbon fiber microelectrode, Chemically modified microelectrode, Nile blue A, Hemoglobin, Electrocatalysis

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