Metal-organic framework UiO-66 for rapid dispersive solid phase extraction of neonicotinoid insecticides in water samples

文献类型： 外文期刊

第一作者： Cao, Xiaolin

作者： Cao, Xiaolin;Jiang, Zejun;Wang, Shanshan;Hong, Sihui;Li, Hui;Zhang, Chao;Shao, Yong;She, Yongxin;Jin, Fen;Jin, Maojun;Wang, Jing

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关键词： UiO-66; Dispersive solid phase extraction (DSPE); Neonicotinoid insecticides; Water samples

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： 2018 年 1077 卷

页码：

收录情况： SCI

摘要： UIO-66 crystals were explored for the first time to adsorb neonicotinoid insecticides in environmental water samples. HPLC coupled with tandem MS was used for quantification and determination of neonicotinoid insecticides. UiO-66 crystals was successfully synthesized by a simple constant-temperature bath method. Synthesized UIO-66 was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetry and nitrogen adsorption porosimetry (NAP), which demonstrated a uniform particle size, a large Brunauer-Emmett-Teller (BET) surface area and high thermostability. The adsorbing results showed that UIO-66 crystals could be used as a promising adsorbents for rapid extraction of neonicotinoid insecticides and be reused at least 10 times. Under the optimized conditions, the limits of detection (LODs, S/N = 3) and limits of quantification (LOQs, S/N = 10) for the five insecticides were found to be 0.02-0.4 ng/mL and 0.05-1.0 ng/mL, respectively. This developed approach not only provided more simple and sensitive method, as well as possessing satisfactory recovery for neonicotinoid insecticides, but also for other traces in environmental samples.

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