Rapid residue analysis of four triazolopyrimidine herbicides in soil, water, and wheat by ultra-performance liquid chromatography coupled to tandem mass spectrometry

文献类型： 外文期刊

第一作者： Liu, Xingang

作者： Liu, Xingang;Xu, Jun;Li, Yuanbo;Dong, Fengshou;Li, Jing;Zheng, Yongquan;Song, Wenchen

作者机构：

关键词： Residue analysis;Soil;Triazolopyrimidine sulfonamide;Ultra-performance liquid chromatography-mass spectrometry;Water;Wheat

期刊名称：ANALYTICAL AND BIOANALYTICAL CHEMISTRY （ 影响因子：4.142； 五年影响因子：3.863 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： A sensitive and effective method for simultaneous determination of triazolopyrimidine sulfonamide herbicide residues in soil, water, and wheat was developed using ultra-performance liquid chromatography coupled with tandem mass spectrometry. The four herbicides (pyroxsulam, flumetsulam, metosulam, and diclosulam) were cleaned up with an off-line C18 SPE cartridge and detected by tandem mass spectrometry using an electrospray ionization source in positive mode (ESI+). The determination of the target compounds was achieved in <2.0 min. The limits of detection were below 1 μg kg~(-1), while the limits of quantification did not exceed 3 μg kg~(-1) in different matrices. Quantitation was determined from calibration curves of standards containing 0.05-100 μg L~(-1) with r ~2>0.997. Recovery studies were conducted at three spiked levels (0.2, 1, and 5 μg kg ~(-1) for water; 5, 10, and 100 μg kg~(-1) for soil and wheat). The overall average recoveries for this method in water, soil, wheat plants, and seeds at three levels ranged from 75.4% to 106.0%, with relative standard deviations in the range of 2.1-12.5% (n=5) for all analytes.

分类号： O65

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