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聚溴酚蓝修饰玻碳电极的制备及电化学性质
引用本文:陈伟,罗红斌,林新华.聚溴酚蓝修饰玻碳电极的制备及电化学性质[J].电化学,2005,11(1):92-95.
作者姓名:陈伟  罗红斌  林新华
作者单位:福建医科大学药学院,福建,福州,350004
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
文章编号:1006-3471(2005)01-0092-04
修稿时间:2004年5月17日

Preparation of Poly ( Bromophenol Blue ) Modified Glassy Carbon Electrode and its Electrocatalytic Activity
CHEN Wei,LUO Hong-bin,LIN Xin-hua.Preparation of Poly ( Bromophenol Blue ) Modified Glassy Carbon Electrode and its Electrocatalytic Activity[J].Electrochemistry,2005,11(1):92-95.
Authors:CHEN Wei  LUO Hong-bin  LIN Xin-hua
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.)
Keywords:Bromophenol blue  Electrochemically polymerization  Electrocatalytic oxidation  Ascorbic acid  Glassy carbon electrode
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