Solid phase extraction technology combined with UPLC-MS/MS: a method for detecting 20 β-lactamase antibiotics traces in goat's milk
文献类型： 外文期刊
作者： He, Xiwen;Li, Ming;Yu, Qi;Liu, Wuyan;Sun, Shufang;Li, Xiang;Wang, Zhaohua;Yan, Xiaohuan;Li, Songli
作者机构：
期刊名称： ANALYTICAL METHODS
ISSN： 1759-9660
年卷期： 2024 年
页码：
收录情况： SCIE（2024版） ; ; EI（2024版）
摘要： We develop and validate a method for the rapid determination and identification of 20 beta-lactamase antibiotics traces in goat's milk by combining the solid phase extraction technology with ultra-high performance liquid chromatography-tandem mass spectrometry. Goat milk samples were extracted with acetonitrile twice. The supernatant was then extracted and cleaned by solid-phase extraction using divinylbenzene and N-vinylpyrrolidone copolymer. The method was validated, with limits of quantification (LOQs) of 0.3 mu g kg(-1), specificities of 1/3 LOQ, linearities (R-2) > 0.99, recoveries of 80-110%, repeatabilities <10.0%, and intermediate precisions <10.0%. The developed method was suitable for the routine analysis of beta-lactamase antibiotics residues in goat's milk and was used to test 76 goat milk samples produced in China.
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