文献类型： 外文期刊

第一作者： Peng Jie

作者： Peng Jie;Gan Jinhua;Ju Xiaoqian;Chen Jianwu;He Li;Gan Jinhua;He Li

作者机构：

关键词： ultra performance liquid chromatography. tandem mass spectrometry (UPLC-MS/MS); QuEChERS; chlorpyrifos; paddy field aquatic products

期刊名称：CHINESE JOURNAL OF CHROMATOGRAPHY （ 影响因子：0.7； 五年影响因子：0.5 ）

ISSN： 1000-8713

年卷期： 2019 年 37 卷 7 期

页码：

收录情况： SCI

摘要： A method was developed for the determination of chlorpyrifos residues in paddy field aquatic products by ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Samples were extracted with acetonitrile and purified by using 0.2 g primary secondary amine (PSA) sorbent and 1.2 g MgSO4. The target compound was separated on a Hypersil GOLD C-18 column (100 mm x 2.1 mm, 5 mu m), and was determined using a heated electrospray ionization (HESI) source in the positive ion selective reaction monitoring (SRM) mode. The analyte was quantified with external standard using the matrix. matched standard cal. ibration curve method. The results showed that good linearities were obtained in the range of 0.5-100.0 mu g/L, and the correlation coefficients were greater than 0.999. The spiked recover. ies of chlorpyrifos ranged from 86.2% to 103.6% with RSDs of 3.5%-7.6% (n = 6). The limits of detection and quantification were 0.25 mu g/kg and 0.5 mu g/kg, respectively. This method is simple, quick, sensitive, and suitable for the rapid determination and analysis of chlorpyrifos residues in paddy field aquatic products.

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