静电纺丝多元杂化纳米膜仿生识别有机锡电化学传感器构建及应用研究

项目名称： 静电纺丝多元杂化纳米膜仿生识别有机锡电化学传感器构建及应用研究

项目编号： No.31471654

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 农业科学

项目作者： 佘永新

作者单位： 中国农业科学院农业质量标准与检测技术研究所

项目金额： 81万元

中文摘要： 针对有机锡污染现状，建立有机锡快速检测技术，研究农产品中有机锡迁移转化与残留行为具有重要科学意义。本项目拟利用静电纺丝与分子印迹（MIP）技术，结合印迹类特异性识别及石墨烯等纳米材料的优点，筛选和优化其制备条件及电纺参数，合成对有机锡具有类特异性吸附的MIP纳米膜，研究纳米膜对有机锡的高效识别机理；以石墨烯、金纳米及MIP层层自组装制备有机锡复合膜印刷阵列电极，利用CV、DPV、EIS法研究各层修饰材料对探针灵敏度和响应速率的影响，优选电化学参数，建立适用于农产品中有机锡的分子印迹电化学传感器检测技术；利用MIP纳米复合膜对农产品中有机锡进行富集、分离和净化，从而建立有机锡多残留前处理技术，研究农产品中有机锡的来源及存在形态，开展有机锡农药在蔬菜中消解动态试验和残留行为研究，阐明农产品中有机锡的迁移与转化机制，为农产品中有机锡污染监控提供技术支撑和理论依据。

中文关键词： 有机锡；纳米膜；仿生识别；电化学传感器；应用研究

英文摘要： It is important to establish rapid detection technology and study migration and residual behavior for organotin in agro-products. For the advantages of molecularly imprinted polymer and graphene nanomaterials, the electrostatic spinning and molecularly imprinted polymer(MIP) technique will be adopted to screen the best preparation conditions and electrospinning parameters. The MIP nanofiber of organotin will be synthesized, and the mechanism of efficient recognition of organnotin will be studied. Graphene, gold nanoparticles and MIP will be used layer by layer to modify screen printing electrode array, which could be studied by cyclic voltammograms (CV), differential pulse voltammetric (DPV), electrochemical impedance (EIS) techniques for the optimization of electrochemical parameters. Finally, electrochemical detection technology based on molecular imprinting for organotin in agro-products would be developed. the multi-residue sample preparation technology would be delevoped with the utilization of MIP nano membrane to enrich, separate and purify organotins in the agro-products. The source and existing forms of organotin in agro-products will be investigated by the technologies mentioned above.Research on digestion dynamic experiment and residual behavior of organotin pesticides in vegetables will be carried out to clarify the migration and transformation mechanism in agro-products, which will provide technical support and theoretical basis for monitoring organotin pollution in agroproducts.

英文关键词： Organotin;Nanofiber;Imprinted Recognition;Electrochemical sensors;Applied reaserch