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应用恒电位沉积法制备了以壳聚糖为功能基体,啶虫脒为模板分子、戊二醛为交联剂的印迹膜电极,并构建印迹传感器.借助阳离子指示探针Ru(NH3)6Cl3,研究该印迹传感器的电化学响应特性及其对模板分子啶虫脒的分子识别性能.结果表明,印迹传感器具有良好的印迹效果,相较于结构类似物如吡虫啉等,对啶虫脒有较高的结合速率和特异性识别能力,且在啶虫脒浓度为1.0×10-7～2.0×10-5 mol/L范围内呈线性响应,为农药残留物中啶虫脒的选择性分析提供新的思路.
The imprinted membrane electrode with chitosan as functional substrate, acetamiprid as template molecule and glutaraldehyde as cross-linking agent was prepared by potentiostatic deposition method, and the imprinting sensor was constructed.Using the cationic indicator probe Ru (NH3) 6Cl3, The electrochemical response characteristics of the imprinted sensor and its molecular recognition of the template acetamiprid were studied.The results showed that the imprinted sensor had a good imprinting effect compared with the structural analogues such as imidacloprid, , And showed a linear response in the range of 1.0 × 10-7 ~ 2.0 × 10-5 mol / L acetamiprid, which provided new information for the selective analysis of acetamiprid in pesticide residues Train of thought.