高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (1): 138.

• 研究简报 • 上一篇    下一篇

葡萄糖氧化酶修饰聚苯胺电极的动力学

薛怀国, 穆绍林   

  1. 扬州师范学院化学系, 扬州 225002
  • 收稿日期:1992-01-03 修回日期:1992-04-19 出版日期:1993-01-24 发布日期:1993-01-24
  • 通讯作者: 穆绍林

The Kinetics of Glucose Oxidase Modified Polyaniline Electrode

XUE Huai-Guo, MU Shao-Lin   

  1. Department of Chemistry, Yangzhou Teacher' s College, Yangzhou, 225002
  • Received:1992-01-03 Revised:1992-04-19 Online:1993-01-24 Published:1993-01-24

关键词: 聚苯胺, 葡萄糖氧化酶, 动力学

Abstract: The reaction rate-limiting of the glucose oxidase modified polyaniline(PAn/GOD) electrodeis controlled by an unsaturated enzyme kinetics with the rate constant of 1.43×10-7 m·s-1.According to the effect of pHon the maximum response current lgimax of the electrode, the plot of Ig imax, versus pHshows that two types of ionizing groups are involved in the intermediate of the reaction.The pK1c and pK2c are 4.9 and 6.3, respectively.When pK1c<pH<pK2c, the glucose oxidase has a high activity.The PAn/GODelectrode still remains a high activity after use of 1200 times and storing for 8 months.

Key words: Polyaniline, Glucose oxidase, Kinetics

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