Supramolecular imprinted electrochemical sensor for the neonicotinoid insecticide imidacloprid based on double amplification by Pt-In catalytic nanoparticles and a Bromophenol blue doped molecularly imprinted film

文献类型： 外文期刊

第一作者： Li, Shuhuai

作者： Li, Shuhuai;Liu, Chunhua;Yin, Guihao;Luo, Jinhui;Zhang, Zhenshan;Li, Shuhuai;Liu, Chunhua;Yin, Guihao;Luo, Jinhui;Zhang, Zhenshan;Xie, Yixian

作者机构：

关键词： Supramolecular imprint;Nanocomposite Catalytic amplification;2-aminophenol;Electropolymerization;Scanning electronmicroscopy;XPS;Cyclic voltammetry;Vegetables

期刊名称：MICROCHIMICA ACTA （ 影响因子：5.833； 五年影响因子：5.357 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The authors describe an electrochemical sensor for the neonicotinoid insecticide imidacloprid (IMI) based on Pt-In catalytic nanocomposite film and Bromophenol blue amplification. The Pt-In nanocomposite film was deposited on the surface of a modified glassy carbon electrode. The composite molecularly imprinted polymer (MIP) was prepared by electro-polymerization using bromophenol blue doped o-aminophenol as functional monomer and 4-tert-butylcalix[6]arene-IMI supramolecular inclusion complex as template molecule. The experimental results showed that the current intensity of IMI was clearly amplified in the potential range from -0.3 to -1.8 V, because of the double amplification, based on the Pt-In film and Bromophenol blue catalysis. Moreover, the double recognition ability of the sensor, which relied on the MIP and the vacuum structure of 4-tert-butylcalix[6]arene, effectively increased the specific recognition performance. The feasibility of its practical applications has been demonstrated by the analysis of vegetable samples.

分类号： O65`O655

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