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

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

(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

(Department of Chemistry, East China Normal University, Shanghai 200062)

Received:2009-09-09 Revised:2009-10-15 Published:2010-03-28

Abstract

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

Cite this article

QU Yun-He, XIAO Fei, CHENG Yu-Xiao, SHI Guo-Ti, JIN Li-Tong. Construction of Tyr/Glu/Fe₃O₄/Nafion/CNT/GCE Biosensor for Detection of Pesticide[J]. Acta Chimica Sinica, 2010, 68(06): 535-539.

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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

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

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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