A multiresidue method for the determination of 109 pesticides in rice using the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) sample preparation method and gas chromatography/mass spectrometry with temperature control and vacuum concentration

被引:92
作者
Nguyen, Thanh Dong
Lee, Byung Soo
Lee, Bo Reurn
Lee, Dae Myung
Lee, Gae-Ho [1 ]
机构
[1] Chungnam Natl Univ, Dept Chem, Taejon, South Korea
[2] KRIAT, Taejon, South Korea
关键词
Gaschromatography-mass spectrometry - Limits of quantitations - Mass spectrometric detection - matrix - Multiresidue method - Relative standards deviations - Routine analysis - Sample preparation - Sample preparation methods - Selected ion monitoring;
D O I
10.1002/rcm.3199
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A rapid, specific and sensitive multiresidue method based on the Quick Easy Cheap Effective Rugged and Safe (QuEChERS) sample preparation method and gas chromatography with mass spectrometric detection by selected ion monitoring (GC/MS-SIM) has been developed for the routine analysis of 109 pesticides in rice. The method uses one quantification ion and two identification ions. Temperature control during sample preparation helps improve the recovery of thermally labile pesticides such as captan. The method was validated by the analysis of samples spiked at 0.025-0.150 mg/kg in rice matrix. The recoveries of all pesticides were between 80% and 115% with a relative standard deviation of less than 15%. The limit of quantitation (LOQ) for most compounds met the maximum residue limits (MRLs) for pesticides in rice in Korea. Copyright (c) 2007 John Wiley & Sons, Ltd.
引用
收藏
页码:3115 / 3122
页数:8
相关论文
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