高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (8): 1204.

• 研究简报 • 上一篇    下一篇

硫堇-甲苯二异氰酸酯衍生物修饰的玻碳基乙醇传感器的研究

俞爱民, 韩吉林, 杨可盛, 陈洪渊   

  1. 南京大学化学系, 南京, 210093
  • 收稿日期:1994-10-07 修回日期:1995-05-10 出版日期:1995-08-24 发布日期:1995-08-24
  • 通讯作者: 陈洪渊
  • 作者简介:俞爱民,女,24岁,硕士研究生.
  • 基金资助:

    国家自然科学基金;中国科学院长春应用化学研究所电分析化学开放实验室基金

A Reagentless Alcohol Sensor Based on Thionine-TDI Modified Glassy Carbon Electrode

YU Ai-Min, HAN Ji-Lin, YANG Ke-Sheng, CHEN Hong-Yuan   

  1. Department of Chemistry, Nanjing University, Nanjing, 210093
  • Received:1994-10-07 Revised:1995-05-10 Online:1995-08-24 Published:1995-08-24

PDF (PC)

被引次数

1

关键词: 硫堇-TDI衍生物, NAD+, ADH, 乙醇传感器

Abstract: Alcohol dehydrogenase(ADH) and the oxidized form of nicotinamide adenine dinucleotide(NAD+) were cross-linked directly in aid of the reaction of thionine and toluene diisocyanate(TDI) on the surface of glassy carbon electrode to yield a reagentless alcohol sensor. The NAD+was converted to NADH by oxidation of alcohol catalyzed by ADH and the NADH formed was oxidized electrochemically to the original NAD+by thionine-TDI mediator, thus giving the catalytic current for target analysis. The peak current was linearly related to the concentration of alcohol in the range of 1-15mmol/L. The influence of various experimental conditions was also explored for optimum analytical performance.The sensor remains relatively stable for about 15 days.

Key words: Thionine-TDI derivate, NAD+, ADH, Alcohol sensor

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