Preparation of magnetic MOFs for use as a solid-phase extraction absorbent for rapid adsorption of triazole pesticide residues in fruits juices and vegetables

文献类型： 外文期刊

第一作者： Liu, Guangyang

作者： Liu, Guangyang;Tian, Mingshuo;Lu, Meng;Li, Tengfei;Liu, Guangyang;Li, Lingyun;Gao, Yuhang;Xu, Donghui;Shi, Weiye

作者机构：

关键词： Metal organic framework; Fe3O4-MWCNT; Solid-phase extraction; Triazole pesticide residues

期刊名称：JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES （ 影响因子：3.205； 五年影响因子：3.068 ）

ISSN： 1570-0232

年卷期： 2021 年 1166 卷

页码：

收录情况： SCI

摘要： Detection of low levels of triazole fungicides in agricultural product matrices is important. Although several detection methods have been developed, all have some drawbacks, such as being time-consuming, requiring complex sample pretreatment, and consuming large volumes of organic solvents. There is an urgent need for a simple and rapid detection method for triazole fungicides. In this study, the adsorbent composite material magnetic MOFs based on Fe3O4-MWCNT was synthesized by in-situ polymerization at room temperature, and was applied to extract triazole pesticides from fruits and vegetables. High-performance liquid chromatographytandem mass spectrometry was used for quantification. Under optimized conditions, the constructed detection method showed a low detection (LOD) of 0.52-1.83 mu g/L (S/N = 3) and wide linear range of 5.00-500.00 mu g/L for triazole fungicides in the fruit and vegetable samples. The method recovery for spiked fungicides (10, 50, and 100 mu g/L) in cabbage, spinach, orange juice, and apple juice ranged from 62.80% to 94.20%. The constructed detection method has a lower detection limit than previously reported methods and has a higher sensitivity for triazole pesticide residues in complex matrices.

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