Simultaneous Determination of 14 Kinds of beta-Agonist Residues in Sheep Saliva by Ultra Performance Liquid Chramatogrephy-Tandem Mass Spectrometry
文献类型: 外文期刊
作者: Li Yang 1 ; Su Xiao-Ou 1 ; Wang Rui-Guo 1 ; Wang Pei-Long 1 ; Zhang Wei 1 ; Chen Jie 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Beijing 100081, Peoples R China
关键词: beta-Agonist;Saliva;Solid phase extraction;Ultra performance liquid chromatography-tandem mass spectrometry
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: 2013 年 41 卷 6 期
页码:
收录情况: SCI
摘要: A sensitive method was developed for the determination of 14 kinds of beta-agonists residues in sheep saliva by solid phase extraction pretreatment and ultra performance liquid chromatography tandem mass spectrometry. The sample was adjusted by pH5. 2 ammonium acetate buffer and centrifuged separation to eliminate impurity, then passed through MCX cartridge to clear-up. The test potion was separated by waters BEH C-18 columns with gradient elution program. Analyte confirmation was performed using multiple reaction monitoring (MRM) with one precursor ion and productions as identifiers. The results were calculated by internal standard method. The LODs were 0. 1-0. 2 mu g/L, LOQs were 0. 3-0. 5 mu g/L, the recoveries were in range of 60% - 110%, and the relative standard deviations (RSDs) were less than 20% at three spiked levels for beta-agonists.
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