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引用本文:   韦贻春, 余会成, 李浩, 陈其锋, 韦冬萍, 雷福厚, 谭学才. 钯纳米粒子修饰的三甲氧苄啶分子印迹膜传感器的制备及其识别性能研究. 分析化学, 2017, 45(9): 1367-1374. doi:  10.11895/j.issn.0253-3820.170261 [复制]

Citation:   WEI Yi-Chun, YU Hui-Cheng, LI Hao, CHEN Qi-Feng, WEI Dong-Ping, LEI Fu-Hou, TAN Xue-Cai. Preparation and Recognition Properties of Trimethoprim Sensor Based on Palladium Nanoparticles-modified Molecularly Imprinted Polymer. Chinese Journal of Analytical Chemistry, 2017, 45(9): 1367-1374. doi: 10.11895/j.issn.0253-3820.170261 [复制]

钯纳米粒子修饰的三甲氧苄啶分子印迹膜传感器的制备及其识别性能研究

通讯作者:  余会成, doyhc@126.com

收稿日期: 2017-04-26

接受日期: 2017-07-18

出版日期: 2017-09-20

基金项目: 本文系广西自然科学基金(No.2015GXNSFAA139040)、广西中青年教师基础能力提升项目(No.2017KY0171)和广西民族大学校级科研项目(No.2016MDYB023)资助

Preparation and Recognition Properties of Trimethoprim Sensor Based on Palladium Nanoparticles-modified Molecularly Imprinted Polymer

Corresponding author:  YU Hui-Cheng, doyhc@126.com

Received Date:  2017-04-26

Accepted Date:  2017-07-18

Published Date:  2017-09-20

采用N,N'-亚甲基双丙烯酰胺(MBA)为功能单体、钯纳米粒子为掺杂剂、马来松香丙烯酸乙二醇酯为交联剂,在玻碳电极上热聚合具有三甲氧苄啶(TMP)识别性能的钯纳米材料修饰的分子印迹传感膜。采用扫描电镜及红外光谱对合成的钯纳米材料、印迹传感膜的形貌及其结构进行了表征;采用循环伏安法(CV)、交流阻抗法(EIS)对钯纳米粒子掺杂的印迹电极与无掺杂电极的电化学性能进行了研究。结果表明,纳米粒子掺杂的印迹电极与无掺杂电极的表面形貌及电化学性能明显不同。差分脉冲伏安法(DPV)表征结果表明,TMP的浓度在5.0×10-7-4.0×10-3 mol/L范围内与脉冲峰电流呈良好的线性关系(R=0.9995),检出限为3.2×10-8 mol/L(S/N=3)。此钯纳米粒子掺杂的印迹传感器具有较高的灵敏度。即时电流测定结果表明,新诺明(SMZ)、磺胺嘧啶(SDZ)、葡萄糖(Glu)、尿素(Urea)对三甲氧苄啶(TMP)的测定不产生干扰。将此印迹传感器用于实际样品中TMP的检测,加标回收率为96.8%~102.0%。

关键词:   钯纳米粒子, 三甲氧苄啶, 传感器, 分子印迹聚合物, 马来松香丙烯酸乙二醇酯
Key words:   Palladium nanoparticles, Trimethoprim, Sensor, Molecularly imprinted polymer, Ethylene glycol maleic rosinate acrylate
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目录

钯纳米粒子修饰的三甲氧苄啶分子印迹膜传感器的制备及其识别性能研究

韦贻春, 余会成, 李浩, 陈其锋, 韦冬萍, 雷福厚, 谭学才

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