Analytical Method Established via Derivatization-Integrated Gas Chromatography-Tandem Mass Spectrometry for the Determination of Enrofloxacin and Ofloxacin Residues: A Focus on Eggs and Dairy Products
文献类型： 外文期刊
作者： Xu, Junjie 1 ; Ding, Hao 2 ; Cai, Jingjing 1 ; Gao, Pengfei 2 ; Cheng, Sihui 1 ; Cao, Yang 1 ; Hong, Yiwei 1 ; Xie, Xing 4 ; Zhang, Tao 1 ; Zhang, Genxi 1 ; Guo, Xiaodong 1 ; Dai, Guojun 1 ; Pang, Maoda 5 ; Xie, Kaizhou 1 ;
作者机构： 1.Yangzhou Univ, Coll Anim Sci & Technol, Yangzhou 225009, Peoples R China
2.Yangzhou Univ, Joint Int Res Lab Agr & Agriprod Safety, Yangzhou 225009, Peoples R China
3.Yangzhou Univ, Coll Vet Med, Yangzhou 225009, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Vet Med, Key Lab Vet Bioprod Engn, Minist Agr & Rural Affairs, Nanjing 210014, Peoples R China
5.Jiangsu Acad Agr Sci, Key Lab Food Qual & Safety Jiangsu Prov, Key Lab Control Technol & Stand Agroprod Safety &, State Key Lab Breeding Base,Inst Food Safety & Nut, Nanjing 210014, Peoples R China
关键词： Eggs; Dairy products; Enrofloxacin; Ofloxacin; Derivatization; GC-MS/MS
期刊名称：FOOD ANALYTICAL METHODS （ 影响因子：3.0； 五年影响因子：3.1 ）
ISSN： 1936-9751
年卷期： 2025 年 18 卷 7 期
页码：
收录情况： SCI
摘要： Preprocessing methods involving liquid-liquid extraction (LLE) and solid-phase extraction (SPE) were combined with gas chromatography-tandem mass spectrometry (GC-MS/MS) to perform qualitative and quantitative evaluations of enrofloxacin and ofloxacin in dairy products (raw milk and milk powder) and eggs (whole egg, albumen, and yolk). Trimethylsilyl diazomethane (TMSD) was applied as the precolumn derivatization reductant. The limits of detection (LODs) and limits of quantitation (LOQs) of enrofloxacin were 0.4 similar to 1.1 and 1.0 similar to 2.0 mu g/kg, respectively. The LODs and LOQs of ofloxacin were 0.1 similar to 0.2 and 0.2 similar to 0.4 mu g/kg, respectively. The recoveries of enrofloxacin and ofloxacin ranged from 79.78 to 92.33% and 78.26 to 90.79%, respectively. The RSDs were all less than 5.60%. The method was validated to satisfy the demand of the FAO & WHO (2014) standard. Moreover, successful utilization of this method is needed to satisfy the technical requirements of various laboratories.
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