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《Journal of Huaqiao University(Natural Science)》 2011-02
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Electrochemcial Characteristic of Monocrotophos Molecularly Imprinted Sensor

LIAN Hui-ting,CHEN Juan-juan,XUE Yan,LIU Bin(College of Material Science and Engineering,Huaqiao University,Quanzhou 362021,China)  
A molecularly imprinted electrochemical sensor(MIP/GCE) of good memory capacity was developed.Using moncrotophos as template molecule,the compound of chitosan and moncrotophos were direct synthesized onto the surface of glass carbon electrode basing on electrodeposition of function matrix chitosan with the aid of hydrogen bond between chitosan and moncrotophos,the imprinted film was formed after the elution of moncrotophos from the co-deposited compound film by applying +0.6 V on the electrode to change the combination microenvironment.Cationic probe Ru(NH3)3+/2+6 was employed to study the optimal conditions of film formation and the electrochemical performance of MIP/GCE on moncrotophos.Result shows,the monocrotophos molecularly imprinted electrodeposition was of good selectivity and detection limit of 0.1 μmol·L-1 was obtained.
【Key Words】： molecularly imprinted sensor electrodeposition moncrotophos chitosan
【Fund】： 国家自然科学基金资助项目(20955001 20575023);; 福建省国际合作重点项目(2006I0021);; 福建省自然科学基金计划资助项目(D0710017 D0810016 U0850008)
【CateGory Index】： O631
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