Novel electrochemical sensor modified with molecularly imprinted polymers for determination of enrofloxacin in marine environment

文献类型： 外文期刊

第一作者： Chen, Jianlei

作者： Chen, Jianlei;Tan, Liju;Wang, Jiangtao;Chen, Jianlei;Qu, Keming;Cui, Zhengguo

作者机构：

关键词： Molecularly imprinted polymers; Electrochemical detection; Voltammetry; Enrofloxacin; Multi-walled carbon nanotubes; Marine environment

期刊名称：MICROCHIMICA ACTA （ 影响因子：6.408； 五年影响因子：5.888 ）

ISSN： 0026-3672

年卷期： 2022 年 189 卷 3 期

页码：

收录情况： SCI

摘要： Molecularly imprinted polymers were synthesized by gel-sol method with multi-walled carbon nanotubes as support and enrofloxacin as a template and further modified on the surface of glassy carbon electrode to construct a molecularly imprinted electrochemical sensor. The performance of the imprinted electrochemical sensor was thoroughly investigated by using cyclic voltammetry and differential pulse voltammetry. The influence of imprinted polymers amount, electrolyte pH, and incubation time on the sensor performance was investigated for the detection of enrofloxacin. Under the optimal experimental conditions in a three-electrode system with the modified electrode as the working electrode the differential pulse voltammetry response current of the sensor had a good linear relationship at 0.2 V (vs. saturated calomel reference electrode) with the enrofloxacin concentration within 2.8 pM-28 mu M and the limit of detection of the method was 0.9 pM. The competitive interference experiment showed that the imprinted electrochemical sensor could selectively recognize enrofloxacin. The method was applied to analyze spiked natural seawater, fish, and shrimp samples. The recovery was 96.4%-102%, and RSD was less than 4.3% (n = 3), indicating that the proposed imprinted electrochemical sensor was suitable for the determination of trace enrofloxacin in marine environment samples.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序