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电化学  2011 

分子印迹电化学传感器的制备及其对啶虫脒的响应特性

, PP. 323-328

Keywords: 分子印迹,电化学传感器,壳聚糖,啶虫脒

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Abstract:

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1.0×10-7~2.0×10-5mol/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。

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