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亚硝基聚吡咯修饰离子选择性电极的制备及电化学性能
引用本文:程发良,莫金垣,戴晓云. 亚硝基聚吡咯修饰离子选择性电极的制备及电化学性能[J]. 东莞理工学院学报, 1997, 0(2)
作者姓名:程发良  莫金垣  戴晓云
作者单位:东莞理工学院应用化学系!东莞市步步高,511700,中山大学,中山大学化学系,香港科技大学生化系
摘    要:用循环伏安法(CV)制备了聚吡咯亚硝酸根离子选择性电极。表征了电极的电化学性能。在1.0x10-1~5.0x10-5mol/L浓度范围内,电极电位与亚硝酸根离子浓度成良好的线性关系,Nernst响应科率为51mv/PNO2-。观察了NO2-在PPy膜中掺杂=去掺杂过程,从而验证了电极响应是基于掺杂机理。

关 键 词:聚吡咯  离子选择性电极  掺杂  亚硝酸根

ELECTROCHEMICAL PROPERTIES OF NO_2~-POLYPYRROLE MODIFIED ION-SELECTIVE ELECTRODE
Cheng Faliang. ELECTROCHEMICAL PROPERTIES OF NO_2~-POLYPYRROLE MODIFIED ION-SELECTIVE ELECTRODE[J]. Journal of Dongguan Institute of Technology, 1997, 0(2)
Authors:Cheng Faliang
Abstract:In this paper, NO2- PPy ion selective electrode is prepared by cyclic voltammograms,and the properties of this polypyrrole modified electrode are characterized. There's a good linear relationship between electrode potential and the concentration of NO2- within 10-1 mol/L and 5 x 10-5 mol/L. The mingling process of NO2 - on PPy film is observed on line, and the mingling machanism of the modified electrode studied.
Keywords:Polypyrrole  Chemically modified electrode  NO_2~-
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