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Determination of five sulfonylurea herbicides in environmental waters and soil by ultra high performance liquid chromatography with tandem mass spectrometry after extraction using graphene

文献类型： 外文期刊

作者： Li, Cheng 1 ; Lu, Anxiang 1 ; Wang, Jihua 1 ; Li, Jie 3 ; Ping, Hua 1 ; Luan, Yunxia 1 ; Chen, Jiayi 1 ; Ha, Xuejiao 4 ;

作者机构： 1.Beijing Res Ctr Agr Stand & Testing, Beijing 100097, Peoples R China

2.Collaborat Innovat Ctr Key Technol Smart Irrigat, Yichang, Peoples R China

3.Univ Sci & Technol Beijing, Sch Chem & Biol Engn, Beijing 100083, Peoples R China

4.Soil & Fertilizer Workstn Daxing Beijing, Beijing, Peoples R China

关键词： Graphene;Solid-phase extraction;Sulfonylurea herbicides;Tandem mass spectrometry;Ultra high performance liquid chromatography

期刊名称：JOURNAL OF SEPARATION SCIENCE （ 影响因子：3.645； 五年影响因子：2.943 ）

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收录情况： SCI

摘要： A fast and novel analytical method was developed for the determination of trace levels of sulfonylurea herbicides in water and soil samples. Graphene was used as a sorbent for extraction, and ultra high performance liquid chromatography with tandem mass spectrometry was used for quantification. Five sulfonylurea herbicides were preconcentrated from water samples using a graphene-loaded packed cartridge, while extraction from soil samples was performed in a single step using graphene-supported matrix solid-phase dispersion. Under the optimized conditions, the calibration plots were linear in the range between 5 and 1000 ng/L for water samples, and between 1 and 200 ng/g for soil samples. All correlation coefficients (R) were >0.99. The limits of detection for water and soil samples were 0.28-0.53 ng/L and 0.08-0.26 ng/g, respectively. This method was successfully applied to the analysis of spiked samples of environmental water and soil, with recoveries ranging from 84.2-109.3 and 86.12-103.2%, respectively, all with relative standard deviations of <10%.

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