数字农科院2.0

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

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

作者机构：

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

期刊名称： J. Chromatogr. B Anal. Technol. Biomed. Life Sci.

ISSN： 1570-0232

年卷期： 2021 年 1166 卷

页码：

收录情况： JCR（2021版） ; EI（2021版）

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 chromatography-tandem mass spectrometry was used for quantification. Under optimized conditions, the constructed detection method showed a low detection (LOD) of 0.52–1.83 μg/L (S/N = 3) and wide linear range of 5.00–500.00 μg/L for triazole fungicides in the fruit and vegetable samples. The method recovery for spiked fungicides (10, 50, and 100 μg/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. © 2020 Elsevier B.V.

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