高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (11): 1380.

• 研究简报 • 上一篇    下一篇

Nafion聚合物涂层碳纤维微电极微分脉冲伏安法测定咖啡因的研究

孙长清1, 高蒨1, 许宏鼎1, 郭黎平2   

  1. 1. 吉林大学化学系, 长春, 130023;
    2. 东北师范大学化学系
  • 收稿日期:1991-10-14 修回日期:1992-04-25 出版日期:1992-11-24 发布日期:1992-11-24
  • 通讯作者: 孙长清
  • 基金资助:

    中国科学院长春应用化学研究所电分折化学开放实验室资助

Determination of Caffeine by Differential Pulse Voltammetry with Nafion Coating Carbon Fibre Electrode

SUN Chang-Qing1, CAO Qian1, XU Hong-Ding1, GUO Li-Ping2   

  1. 1. Department of Chemistry, Jilin University, Changchan, 130023;
    2. Department of Chemistry, Northeast Normal University, Changchun
  • Received:1991-10-14 Revised:1992-04-25 Online:1992-11-24 Published:1992-11-24

PDF (PC)

被引次数

1

关键词: 碳纤维微电极, 咖啡因, 伏安法

Abstract: A Nafion modified carbon fibre microelectrode was established.The response of caffeine at the Nafion coating microelectrode was evaluated by differential pulse voltammetry.The linear relationship between the peak height and the concentration of caffeine in the range of 2×10-5～5×10-4mol/Lis obtained.By means of cyclic voltammetry the kinetic behaviour of caffeine on the electrode was studied.This method was also applied to the direct determination of caffeine in drugs.

Key words: Carbon fibre electrode, Caffeine, Voltammetry

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