Phenylboronic acid-functionalized magnetic metal-organic framework nanoparticles for magnetic solid phase extraction of five benzoylurea insecticides

文献类型： 外文期刊

第一作者： Cui, Xiaoyan

作者： Cui, Xiaoyan;Wang, Yujiao;Lu, Runhua;Gao, Haixiang;Zhou, Wenfeng;Huang, Xiaodong;Shi, Yao-Lin

作者机构：

关键词： Magnetic solid phase extraction; Benzoylurea insecticides; UiO-66 MOF; Phenylboronic acid

期刊名称：JOURNAL OF CHROMATOGRAPHY A （ 影响因子：4.1； 五年影响因子：3.7 ）

ISSN： 0021-9673

年卷期： 2023 年 1704 卷

页码：

收录情况： SCI

摘要： This research involves the construction of a phenylboronic acid-functionalized magnetic UiO-66 metal-organic framework (MOF) nanoparticle (CPBA@UiO-66@Fe3O4). Its design is primarily for the magnetic solid phase extraction (MSPE) of benzoylurea insecticides. An organic ligand, 2-amino terephthalic acid (2-ATPA), facilitated the introduction of amino groups while keeping the original crystal structure of UiO-66 intact. The constructed UiO-66 MOF showcases a porous structure and extensive surface area, thereby providing an optimal platform for further functionalization. The employment of 4-carboxylphenylboronic acid as a modifier notably amplified the extraction efficiency for benzoylureas. This improvement was due to the formation of B-N coordination and other secondary interactions. By integrating this with high-performance liquid chromatography (HPLC), we established a quantitative analytical method for benzoy-lurea insecticides. This method achieved a wide linear range (2.5-500 & mu;g L-1 or 5-500 & mu;g L-1), satis-factory recoveries (83.3-95.1%), and acceptable limits of detection (LODs: 0.3-1.0 & mu;g L-1). The developed method proved successful when applied to six tea infusion samples, representing China's six major tea categories. Semi-fermented and light-fermented tea samples demonstrated relatively higher spiking re-coveries.& COPY; 2023 Published by Elsevier B.V.

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