数字农科院2.0

Simultaneous determination of eight carbapenems in milk by modified QuEChERS and ultra high performance liquid chromatography coupled with high-field quadrupole-orbitrap high-resolution mass spectrometry

文献类型： 外文期刊

作者： Suo Decheng;Fan Xia;Xiao Zhiming;Liyang;Wang Peilong

作者机构：

关键词： Carbapenems;Milk;QuEChERS;Ultra-performance liquid chromatography high-field quadrupole-orbitrap high-resolution mass spectrometry

期刊名称： Journal of Chromatography A

ISSN： 0021-9673

年卷期： 2022 年 1670 卷

页码：

收录情况： SCIE（2022版） ; EI（2022版）

摘要： A simple and accurate method of ultra high performance liquid chromatography (UHPLC) coupled with quadrupole-high field Orbitrap high-resolution mass spectrometry (QE HF HRMS) has been developed for analyzing 8 trace-level (µg/L) carbapenems in milk. Mass spectrometry conditions, chromatographic conditions, extraction solvent and QuEChERS procedures were optimized for determination of 8 carbapenems in milk. Samples were extracted and purified by modified QuEChERS procedure. Good separation for 8 carbapenems s was achieved with a PFP column at 8 min. Method validation results showed the linear ranges are 1–100 µg/L to 10–1,000 µg/L, the correlation coefficients are more than 0.995, and the recoveries of spiked samples are 79.3%–104% with a relative standard deviation less than 15%. This method successfully applied to monitor residue of carbapenems in real milk, four kinds of carbapenems have been detected in 8 sample of 79 collected milks with concentration ranged between 15 µg/L∼3,325 µg/L.

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