Multiresidue Determination of Six Pesticide Adjuvants in Characteristic Minor Crops Using QuEChERS Method and Gas Chromatography-Mass Spectrometry
文献类型： 外文期刊
第一作者： Qi, Yan
作者： Qi, Yan;Jin, Fen;Jin, Maojun;She, Yongxin;Wang, Jing;Wang, Shanshan;Ma, Cong;Wan, Mengfei;Liu, Zhongdong;Zheng, Lufei
作者机构：
关键词： characteristic minor crops; gas chromatography-mass spectrometry; multiresidue analysis; pesticide adjuvant; QuEChERS
期刊名称：CHEMISTRYSELECT （ 影响因子：2.109； 五年影响因子：2.054 ）
ISSN： 2365-6549
年卷期： 2019 年 4 卷 1 期
页码：
收录情况： SCI
摘要： A new multiresidue analysis method using a quick, easy, cheap, effective, rugged, and safe (QuEChERS) procedure for the determination of 6 pesticide adjuvants (toluene, p-xylene, o-xylene, m-xylene, N, N-dimethylformamide (DMF) and dimethyl sulphoxide (DMSO) in characteristic minor crops was developed via gas chromatography-mass spectrometry (GC-MS). Matrices, including lily bulb, millet, and Chinese yam, were extracted with CH3CN/CH3CN-H2O and then cleaned up by primary secondary amine (PSA), followed by GC-MS analysis with selected ion monitoring (SIM) mode. Under the optimal conditions, the established QuEChERS-GC/MS method showed good linearity (r>0.998) for all targets with limits of detection of 0.001-0.005 mg kg(-1) for benzene compounds, 0.012-0.022 mg kg(-1) for DMF, and 0.012-0.024 mg kg(-1) for DMSO, respectively. The average recoveries in the three characteristic minor crop samples ranged from 72.9% to 94.9% with relative standard deviations from 2.4% to 9.9%. The method is demonstrated to be accurate, sensitive, and convenient and thus could be applied for routinely monitoring multiresidues of pesticide adjuvants in agro-products.
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