Preparation of magnetic zeolitic imidazolate framework-8 for magnetic solid-phase extraction of strobilurin fungicides from environmental water samples

文献类型： 外文期刊

第一作者： Li, Xinyi

作者： Li, Xinyi;Li, Bingzhi;Cao, Xiaolin;Yin, Jungang;Zhang, Ziping;Chen, Min;Yan, Mengmeng

作者机构：

期刊名称：ANALYTICAL METHODS （ 影响因子：2.896； 五年影响因子：2.716 ）

ISSN： 1759-9660

年卷期： 2021 年 13 卷 26 期

页码：

收录情况： SCI

摘要： In this paper, magnetic zeolitic imidazolate framework-8 composites were synthesized by a simple in situ method and then used for the first time as an adsorbent in magnetic solid-phase extraction for extracting multiple strobilurin fungicides. The magnetic composites were characterized in detail. The results showed that Fe3O4 nanoparticles were attached on the surface of zeolitic imidazolate framework-8 with a uniform particle size of 150-200 nm and that the magnetic composites possessed a perfect molecular transfer rate towards strobilurin fungicides. The parameters of the magnetic solid-phase extraction process, including solution pH, adsorption time, solution volume, elution solvent, and elution volume, were investigated. Under the optimum conditions, the recoveries of all five fungicides fell within the range 80.8-109.0% with spiking levels of 10, 20 and 50 ng mL(-1). A magnetic solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry method based on the magnetic composites was established and confirmed to be simple, time-efficient and highly sensitive.

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