高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (11): 1522.

• 研究论文 • 上一篇    下一篇

聚苯胺修饰电极对金离子的富集作用

李根喜, 方惠群, 陈洪渊   

  1. 南京大学化学系, 南京 210008
  • 收稿日期:1993-01-30 修回日期:1993-04-16 出版日期:1993-11-24 发布日期:1993-11-24
  • 通讯作者: 陈洪渊.
  • 作者简介:李根喜, 男, 28岁, 博士研究生.
  • 基金资助:

    国家自然科学基金

Enrichment of Gold(Ⅲ) by Polyaniline Modified Electrode

LI Gen-Xi, FANG Hui-Qun, CHEN Hong-Yuan   

  1. Department of Chemistry, Nanjing University, Nanjing, 210008
  • Received:1993-01-30 Revised:1993-04-16 Online:1993-11-24 Published:1993-11-24

PDF (PC)

被引次数

11

摘要： 研究了聚苯胺对金离子的配位富集作用,并用循环伏安、红外光谱、扫描电镜等方法加以证实.探讨了影响这一作用的几个因素,选择了最佳的实验条件.在5.07×10-6～5.07×10-5mol/L范围内,Au(Ⅲ)还原峰电流与金浓度呈线性关系,可用于微量金的测定.

关键词: 聚苯胺, 化学修饰电极, 金

Abstract: Reaction of the coordinating preconcentration of gold(Ⅲ) by polyaniline modified electrode was studied and verf ied using the methods of cyclic voltammetry, FTIRand scanning electron micrograph.On the basis of the experiments, the optimums reaction conditions were obtained.The cathodic peak current was proportional to the concentration of Au (Ⅲ) in the range of 5.07 × 10-6-5.07× 10-5 mol/Lunder this optimum condition.So this method could be used for the determination of gold in real samples.

Key words: Polyaniline, Chemically modified electrode, Gold

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