Determination of trace vancomycin in edible animal tissues and assessment of matrix effects

文献类型： 外文期刊

第一作者： Chen, Qianqian

作者： Chen, Qianqian;Chen, Ruqing;Wu, Zhanghe;Liu, Yahong;He, Limin;Zhou, Hao;Chen, Xing;Liu, Yahong;Zhou, Hao

作者机构：

关键词： Vancomycin; Edible animal tissues; Surface molecularly imprinted solid-phase; extraction; Matrix effects; Glycerophospholipids; Liquid chromatography-tandem mass; spectrometry

期刊名称：JOURNAL OF FOOD COMPOSITION AND ANALYSIS （ 影响因子：4.3； 五年影响因子：4.6 ）

ISSN： 0889-1575

年卷期： 2023 年 116 卷

页码：

收录情况： SCI

摘要： Vancomycin (VCM) is known as the last line of defense against gram-positive bacteria. For one health, the rapid and effective monitoring of VCM is very important. In this study, a new liquid chromatography-tandem mass spectrometry method was established to detect VCM residues in livestock, poultry and fish. Tissues samples were extracted with 40% acetonitrile and 0.1% formic acid solution, and purified with the surface molecularly imprinted solid-phase extraction. The results showed that the method had good linearity (r > 0.99) in the range of 1-100 ng/mL, and the average recoveries of VCM in ten edible tissues at 1, 2 and 10 mu g/kg spiking levels were 93.2-117%, with the relative standard deviations below 12.1%. The limits of detection and quantification were 0.5 and 1 mu g/kg, respectively. Compared to conventional cartridges, the new cartridge could more effectively remove phospholipids in tissues samples. Furthermore, the statistical analysis demonstrated that there was a significant difference between the slopes of matrix-matched calibration curves of before and after purification (p < 0.05). The endogenous lysophosphatidylcholine proved to be a main effector that caused strong matrix inhibitory effect on VCM analysis.

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