高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (8): 1073.

• 研究简报 • 上一篇    下一篇

离子结合物在二茂铁介体电流型葡萄糖生物传感器中的应用研究

孙长清, 宋文波, 高倩, 杜文媛, 许宏鼎   

  1. 吉林大学化学系, 长春 130023
  • 收稿日期:1992-09-07 修回日期:1993-06-18 出版日期:1993-08-24 发布日期:1993-08-24
  • 通讯作者: 许宏鼎
  • 作者简介:第一作者:男, 49岁, 副教授.
  • 基金资助:

    吉林大学酶工程开放实验室基金

Studies on Application of Ion Associate to Amperometric Biosensors for Glucose Based on Paste Modified by FeCp2

SUN Chang-Qing, SONG Wen-Be, GAO Qian, DU Wen-Yuan, XU Hong-Ding   

  1. Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1992-09-07 Revised:1993-06-18 Online:1993-08-24 Published:1993-08-24

关键词: 二茂铁, 离子缔合物, 生物传感器, 葡萄糖

Abstract: This paper describes the design and testing of amperometric glucose biosensor in whichelectrical communication between the flavin redox centers of glucose oxidase and a conventionalcarbon paste electrode containing (C6H5).1B · N+(CH3)1 has been achieved by using electron-transfer relay system based on ferrocene (FeCp2).Characteristics of the biosensor has been shown by cyclic voltammetry and stationary potential measurements.The biosensor responds rapidly to glucose, with steady-state current responsed achieved in less than 50 s.The response to glucose under N2 saturation showed apparent Michcells-Menten constant, KMapp, 21 mmol/L.The biosensor can be operated in a potential range where the oxidation of common interfering species, such as Vc and uric acid does not occur.Life of the biosensor is 50 days and plasma glucose assays were correlated with spectropllotometric determinations(Y=10.04 + 0.886X, r=0.99, n=9).

Key words: Ferrocene, Ion associate, Biosensor, Glucose

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