高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (10): 1300.

• 论文 • 上一篇    下一篇

Nafion Schiff碱化学修饰电极的研究

吴国清, 刘快之   

  1. 河南大学化学系, 开封, 475001
  • 收稿日期:1990-04-29 出版日期:1991-10-24 发布日期:1991-10-24
  • 通讯作者: 刘快之
  • 基金资助:

    河南省教委自然科学基金

A Study of Nafion Schiff Base Modified Electrode

Wu Qing-guo, Liu Kuai-zhi   

  1. Department of Chemistry, Henan University, Kaifeng, 475001
  • Received:1990-04-29 Online:1991-10-24 Published:1991-10-24

摘要: 研制了Nafion-N,N′-双(3-羧基邻羟亚苄基)三亚甲基二胺(Schiff碱)化学修饰电极;研究了电极的伏安特性,探讨了电极反应机理;用红外光谱证实了Hg(Ⅱ)与Schiff碱的可配位性,该电极用于微分脉冲阳极溶出伏安法测定未处理的尿样中痕量汞,较玻碳电极具有更高的灵敏度和较好的抗表面活性物质干扰的能力。

关键词: Nafion, Schiff碱, 溶出伏安法, 化学修饰电极,

Abstract: This paper describes the preparation of the glassy carbon electrode treated with Nafion-130 containing Schiff base and the process of electrochemical response. It was proved that mercury ions can be complexed with Schiff base, which is verified by IRspectral analysis. The Nafion-Schiff base coated electrode was used to determine trace mercury, and improved the resistance to interference from surface active compounds and increased sensitity. The result was satisfactory when the NSCME was used to determine trace mercury in untreated urine sample.

Key words: Nafion, Schif f base, Stripping voltammetry, Chemically modified electrode, Mercury

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