Quantitative analysis of chloramphenicol, thiamphenicol, florfenicol and florfenicol amine in eggs via liquid chromatography-electrospray ionization tandem mass spectrometry
文献类型： 外文期刊
作者： Xie, Xing 1 ; Wang, Bo 2 ; Pang, Maoda 4 ; Zhao, Xia 2 ; Xie, Kaizhou 2 ; Zhang, Yangyang 2 ; Wang, Ya'juan 2 ; Guo, Ya'w 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Vet Med, Key Lab Vet Biol Engn & Technol, Minist Agr, Nanjing 210014, Jiangsu, Peoples R China
2.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou 225009, Jiangsu, Peoples R China
3.Yangzhou Univ, Joint Int Res Lab Agr & Agriprod Safety, Yangzhou 225009, Jiangsu, Peoples R China
4.Jiangsu Acad Agr Sci, Key Lab Control Technol & Standard Agroprod Safet, Lab Food Qual & Safety,Inst Food Safety & Nutr, State Key Lab Cultivat Base,Minist Sci & Technol, Nanjing 210014, Jiangsu, Peoples R China
关键词： Chloramphenicol; Thiamphenicol; Florfenicol; Florfenicol amine; LC-ESI/MS/MS; Eggs
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2018 年 269 卷
页码：
收录情况： SCI
摘要： A widely applicable method involving liquid chromatography-electrospray ionization tandem triple quadrupole mass spectrometry (LC-ESI/MS/MS) was developed for the simultaneous determination of chloramphenicol, thiamphenicol, florfenicol, and florfenicol amine in eggs. Samples were extracted with ethyl acetate-acetonitrile-ammonium hydroxide (49: 49: 2, v/v) and defatted with hexane saturated with acetonitrile. The analysis was carried out on a mass spectrometer via an electrospray interface operated in the positive and negative ionization modes using deuterated chloramphenicol-d5 as the internal standard. The limits of detection and limits of quantification were 0.04-0.5 mu g/kg and 0.1-1.5 mu g/kg in eggs, respectively. The average recoveries of the four analytes from egg samples were 90.84-108.23%, with relative standard deviations of less than 9.61%. The corresponding intra-day and inter-day variations were found to be less than 8.11% and 11.30%, respectively. Finally, the new approach was successfully applied to the quantitative determination of these analytes in 50 commercial eggs from local supermarkets.
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