高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (7): 922.

• 研究论文 • 上一篇    下一篇

阳离子交换型聚合物AQ薄膜修饰碳纤维电极及伏安行为

田敏, 董绍俊   

  1. 中国科学院长春应用化学研究所, 电分析化学开放研究实验室, 长春 130022
  • 收稿日期:1992-11-17 修回日期:1993-03-28 出版日期:1993-07-24 发布日期:1993-07-24
  • 通讯作者: 董绍俊.
  • 作者简介:第一作者, 男, 31岁, 博士.

The Cation Exchange Eastman-AQ Polymer Film Modified Carbon Fiber Electrode and Voltammetric Behavior

TIAN Min, DONG Shao-Jun   

  1. Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022
  • Received:1992-11-17 Revised:1993-03-28 Online:1993-07-24 Published:1993-07-24

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被引次数

1

摘要： 本文成功地制备了Eastman-AQ-55D聚合物修饰碳纤维电极,用循环伏安法探讨了一些实验参数的影响,并对Ru(NH3)63+、甲基紫精进行了分析,结果表明,AQ-55D修饰的微电极稳定性好,修饰方法简单,灵敏度和选择性都有一定的提高,Ru(NH3)63+、甲基紫精的峰电流与浓度在1.2×10-6～1.2×10-5mol/L、1.7×10-6～1.4×10-5mol/L范围内呈线性关系,其相关系数分别为0.999、0.998.利用此电极测定了几种离子在膜中的扩散系数.

关键词: 微电极, 修饰电极, 聚合物-AQ, 离子交换伏安法

Abstract: Acarbon fiber electrode modified with Eastman-AQpolymer film was successfully prepared, effects of some experimental parameters were assessed.The behavior of (Ru(NH3)63+ and MV2+(methyl viologen) were investigated by cyclic voltammetry.AQ-55Dmodified microelectrode possesses high stability, selectivity and sensitivity, the linear ranges of Ru(NH3)63+ and MV2+ are 1.2 ×10-6- 1.2×10-5 mol/Land 1.7×10-6-1.4×10-5 mol/L, and the correlation coefficients are 0.999 and 0.998, respectively.Diffusion coefficients of some ions in the film were determined by chronoamperometry at AQcoating microdisk electrode.

Key words: Microelectrode, Modif ied-electrode, Polymer-AQ, Ion-exchange voltammetry

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