Rapid Determination of Paclobutrazol in Fruits by QuEChERS Cleanup and Gas Chromatography-tandem Mass Spectrometry

文献类型: 外文期刊

第一作者: Song Ying

作者: Song Ying;Pan Jia-Rong;Song Ying;Zhang Yao-Hai;Huang Xia;Jiao Bi-Ning

作者机构:

关键词: Rapid analysis of pesticide residue;Gas chromatography-tandem mass spectrometry;Paclobutrazol;Fruits

期刊名称:CHINESE JOURNAL OF ANALYTICAL CHEMISTRY ( 影响因子:1.134; 五年影响因子:0.909 )

ISSN: 0253-3820

年卷期: 2011 年 39 卷 8 期

页码:

收录情况: SCI

摘要: In this study, an analytical method was established for the determination of paclobutrazol in fruits (peach, leechee and cherry) using the Quick, Easy, Cheap, Effective, Rugged and Safe (QuEChERS) cleanup and gas chromatography-tandem mass spectrometry. The paclobutrazol of fruits sample was extracted with acetonitrile, removed the water with anhydrous magnesium sulfate and sodium chloride, cleaned up with dispersive method on primary secondary amine and graphitized carbon black, and detected by gas chromatography-tandem mass spectrometry under multiple reaction monitoring mode. The qualitative results were obtained based on the characteristic m/z. 236>125 and m/z 236>167, and the quantitation results were on the intension of the characteristic m/z 236>125. The recoveries of the paclobutrazol were in the range from 86. 7% to 130% at the spike levels of 0. 005, 0. 05 and 0. 5 mg/kg into three fruits matrixes, the relative standard deviations (RSDs) were between 2. 0% and 19. 6%, and the limits of detection were 0. 4, 0. 5 and 0. 5 mu g/kg. The method is simple, quick, safe, reproducible and applicable to confirm paclobutrazol residue in the fruits sample.

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