食品科学

• 专家约稿 • 上一篇    下一篇

间苯氧基苯甲酸分子印迹膜的电化学聚合制备及其应用

戴芳芳1,周 瑶1,马 良1,2,3,*,郭雪霞4,张宇昊1,2,5   

  1. 1.西南大学食品科学学院,重庆 400715;2.农业部农产品贮藏保鲜质量安全风险评估实验室(重庆),重庆 400716;
    3.农业部柑桔产品质量安全风险评估实验室(重庆),重庆 400712;4.农业部规划设计研究院,北京 100125;
    5.西南大学 国家食品科学与工程实验教学示范中心,重庆 400715
  • 出版日期:2015-10-25 发布日期:2015-10-20
  • 通讯作者: 马 良
  • 基金资助:

    重庆市科委重点课题(cstc2013yykfB0165);中央高校基本科研业务费专项(XDJK2013B035;2362014xk11)

Fabrication and Application of Electropolymerized Molecularly Imprinted Film for 3-Phenoxybenzoic Acid Detection

DAI Fangfang1, ZHOU Yao1, MA Liang1,2,3,*, GUO Xuexia4, ZHANG Yuhao1,2,5   

  1. 1. College of Food Science, Southwest University, Chongqing 400715, China; 2. Laboratory of Quality and Safety Risk Assessment
    for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture, Chongqing 400716, China;
    3. Laboratory of Risk Assessment for Citrus Quality and Safety, Ministry of Agriculture (Chongqing), Chongqing 400712, China;
    4. Chinese Academy of Agricultural Engineering, Ministry of Agriculture, Beijing 100125, China;
    5. National Food Science and Engineering Experimental Teaching Center, Southwest University, Chongqing 400715, China
  • Online:2015-10-25 Published:2015-10-20
  • Contact: MA Liang

摘要:

研究间苯氧基苯甲酸快速准确的检测方法可为环境中间苯氧基苯甲酸监测以及拟除虫菊酯农药代谢物的生态风险评价提供技术支持。本实验以邻氨基酚为功能单体,以间苯氧基苯甲酸为模板分子,采用循环伏安法在玻碳电极表面聚合形成可用于检测间苯氧基苯甲酸的分子印迹膜,结合电化学技术用于水中间苯氧基苯甲酸的检测研究,30 s可对间苯氧基苯甲酸完成响应,在2.00~11.00 mg/L质量浓度范围内,分子印迹膜的响应电流变化值与间苯氧基苯甲酸质量浓度呈线性关系,线性方程为y=0.29x+2.16,相关系数为0.99,方法的检出限为1.47 mg/L;对加标水样进行检测,回收率在92.00%~101.00%之间。

关键词: 间苯氧基苯甲酸, 环境污染物, 分子印迹膜, 电化学

Abstract:

This study aimed to develop a rapid and precise method for detecting 3-phenoxybenzoic acid (3-PBA) in
environmental samples which can provide technical support for ecological risk assessment of the major pyrethroid
metabolite. Using o-aminophenol (OAP) as the monomer and 3-PBA as the template, a molecularly imprinted membrane
(MIM) for 3-PBA detection by combination with electrochemical technology was formed on the surface of glassy carbon
electrode (GCE). The response to 3-PBA was completed in 30 s. The results showed that the relationship between peak
current and 3-PBA concentration within the range of 2.00 mg/L to 11.00 mg/L was linear (the linear equation was y = 0.29x +
2.16) with a linear correlation coefficient of 0.99 and the limit of detection (LOD) was 1.47 mg/L. The recoveries were
between 92.00% and 101.00% in spiked water samples.

Key words: 3-phenoxybenzoic acid, environmental pollution, molecularly imprinted membrane, electrochemistry

中图分类号: