多壁碳纳米管修饰玻碳电极用于对羟基苯丙酮酸的电化学研究  

Study on the Electrochemical Behaviors of p-hydroxyphenylpyruvic Acid on Multi-wall Carbon Nanotube Modified Electrode

作　　者：黄颖[1] 张晓丽[1] 占春荣[1] 余萍[1] 

机构地区：[1]福建师范大学化学与材料学院,福建福州350108

出　　处：《福建师范大学学报（自然科学版）》2010年第3期47-51,共5页Journal of Fujian Normal University：Natural Science Edition

基　　金：福建省科技厅资助项目(2005K013)

摘　　要：研究了对羟基苯丙酮酸（pHPP）在多壁碳纳米管修饰电极上的电化学行为．考察了多种因素及不同电化学方法对测定的影响．和裸玻碳电极相比，pHPP在修饰电极上的电化学响应明显增强．pHPP氧化峰电流与其浓度在5×10^-12～1×10^10mol／L范围内呈良好的线性关系，检测限为1．36μmol／L．The electrochemical behaviors of p-hydroxyphenylpyruvic acid were studied at multi-wall carbon nanotube modified glass carbon electrode （MWNT/GCE）. Several factors on the electrochemical determination and different voltammetric method were investigated. The electrochemical response of p-hydroxyphenylpyruvic acid was improved at MWNT/GCE compared with that at the bare GCE. Under optimal conditions, there was a good linear relationship between peak current and p-hydroxyphenylpyruvic acid concentration in the range from 5×10^-12 to 1 ×10^-10mol/L with a detection limit of 1.36 μmol/L （S/N = 3）

关 键 词：对羟基苯丙酮酸 碳纳米管 化学修饰电极 电化学 

分 类 号：O657.1[理学—分析化学]