Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (06): 535-539. Previous Articles     Next Articles

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Tyr/Glu/Fe3O4/Nafion/CNT/GCE酪氨酸酶生物传感器的制备及应用于农药检测的研究

曲云鹤,肖飞,程欲晓,施国跃,金利通   

  1. (华东师范大学化学系 上海 200062)
  • 投稿日期:2009-09-09 修回日期:2009-10-15 发布日期:2010-03-28
  • 通讯作者: 金利通 E-mail:ltjin@chem.ecnu.edu.cn,litongjin@263.net,51050606028@student.ecnu.edu.cn
  • 基金资助:

    上海世博专项(06dz05824)

Construction of Tyr/Glu/Fe3O4/Nafion/CNT/GCE Biosensor for Detection of Pesticide

Qu Yunhe Xiao Fei Cheng Yuxiao Shi Guoyue Jin Litong   

  1. (Department of Chemistry, East China Normal University, Shanghai 200062)
  • Received:2009-09-09 Revised:2009-10-15 Published:2010-03-28

A Tyr/Glu/Fe3O4/Nafion/CNT multilayer modified electrode was employed for the detection of carbofuran in samples. The configuration of the nanostructure on the electrode provides a favorable environment for the Tyr electrocatalytic characterization and fast electron transfer. The surface of the sensor was characterized by TEM methods. A set of experimental conditions were also optimized for the detection of the pesticide. The developed biosensor showed high sensitivity, stability and reproducibility, which had a low detection limit of 2.0×10-9 mol/L for carbofuran.

Key words: Fe3O4, Tyr, pesticide, carbofuran