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电化学(中英文) ›› 2005, Vol. 11 ›› Issue (1): 92-95. 

• 研究论文 • 上一篇    下一篇

聚溴酚蓝修饰玻碳电极的制备及电化学性质

陈伟,罗红斌,林新华   

  1. 福建医科大学药学院,福建医科大学药学院,福建医科大学药学院 福建福州,350004 ,福建福州,350004 ,福建福州,350004
  • 收稿日期:2005-02-28 修回日期:2005-02-28 出版日期:2005-02-28 发布日期:2005-02-28

Preparation of Poly ( Bromophenol Blue ) Modified Glassy Carbon Electrode and its Electrocatalytic Activity

CHEN Wei,LUO Hong-bin,LIN Xin-hua~*   

  1. (College of Pharmaceutical,Fujian Medical University,Fuzhou 350004,China
  • Received:2005-02-28 Revised:2005-02-28 Published:2005-02-28 Online:2005-02-28

摘要: 在含溴酚蓝的磷酸缓冲溶液中,应用循环伏安法于经预处理的玻碳电极上形成聚合物薄膜.结果表明,在-1. 0V~+1. 8V(vs.Ag/AgCl)扫描电位之间形成的薄膜具有较高的电活性和稳定性.该电极对抗坏血酸电化学氧化有催化作用,既使抗坏血酸的氧化电位负移了 270mV,又增大了其氧化峰电流.催化峰电流与抗坏血酸浓度在 2. 5~250μg/mL范围内呈良好的线性关系.

关键词: 溴酚蓝, 电化学聚合, 电催化氧化, 抗坏血酸, 玻碳电极

Abstract: A film of poly ( bromophenol blue ) was formed on a glassy carbon electrode by using cyclic voltammetry. A stable film could be obtained with a potential range from -1.0V to +1.8V(vs.Ag/AgCl). The experimental results showed that the poly ( bromophenol blue ) modified glassy carbon electrode could catalyse the oxidation of ascorbic acid. It decreased the oxidation potential by about 270mV but increased the peak current. Meanwhile, this electrode showed a good linear current response for the ascorbic acid range from 2.5 to 250 (g/mL.)

Key words: Bromophenol blue, Electrochemically polymerization, Electrocatalytic oxidation, Ascorbic acid, Glassy carbon electrode

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