基于复合功能单体噻菌灵印迹传感器的制备及应用
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(1. 河北科技大学食品与生物学院,河北 石家庄 050018;2. 石家庄工商职业学院,河北 石家庄 050091)

作者简介:

尤晓亭,女,河北科技大学在读硕士研究生。

通讯作者:

高文惠(1963—),女,河北科技大学教授,博士。E-mail: wenhuigao@126.com

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基金项目:

河北省重点研发计划项目(编号:20327122D,21327115D);石家庄市科技研发计划项目(编号:211170183A)


Preparation and application of thiabendazole molecularly imprinted sensor based on composite functional monomers
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(1. College of Food and Biology, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China; 2. Shijiazhuang Vocational College of Industry and Commerce, Shijiazhuang, Hebei 050091, China)

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    摘要:

    目的:快速检测食品中噻菌灵残留量。方法:通过紫外光谱法筛选邻氨基苯酚和邻苯二胺作为复合功能单体,采用电化学分析法研究了聚合条件、洗脱条件,对传感器性能进行了评价,建立了食品中噻菌灵残留的快速检测方法。结果:在最佳条件下,该印迹传感器对噻菌灵及其结构类似物具有特异吸附性能,且对噻菌灵的选择性最强;该方法的线性范围在1×10-8~1×10-4 mol/L,检出限为3.3×10-9 mol/L,样品加标平均回收率为88.16%~100.73%,相对标准偏差(RSD)≤2.63%。结论:该传感器具有优异的印迹效应以及良好的选择性、重现性与稳定性,可用于食品中噻菌灵残留的快速检测。

    Abstract:

    Objective: This study aimed to rapidly detect the residual quantity of thiamendazole in food. Methods: O-aminophenol and o-phenylenediamine were screened as composite functional monomers by ultraviolet spectroscopy. The polymerization and elution conditions were studied by electrochemical analysis, and the performance of the sensor was evaluated. A rapid method for the determination of thiamendam residues in food was established. Results: Under the control of the optimal conditions, the imprinted sensor had the specific adsorption performance for thiamendam and its structural analogues, and the selectivity for thiamendam was the strongest. The linear relationship of this method ranged from 1.0×10-8 to 1.0×10-4 mol/L, and the detection limit was 3.3×10-9 mol/L; The average recoveries of the spiked samples were 88.16%~100.73%, and the relative standard deviations were less than 2.63%. Conclusion: The sensor has excellent imprinting effect, selectivity, reproducibility and stability, and can be used for the rapid detection of thiamendam residues in food.

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尤晓亭,胡 静,张东东,等.基于复合功能单体噻菌灵印迹传感器的制备及应用[J].食品与机械,2023,39(3):55-60,232.
YOU Xiao-ting, HU Jing, ZHANG Dong-dong, et al. Preparation and application of thiabendazole molecularly imprinted sensor based on composite functional monomers[J]. Food & Machinery,2023,39(3):55-60,232.

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  • 收稿日期:2022-08-25
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  • 在线发布日期: 2023-04-25
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