Magnetic molecularly imprinted polymers are used to selectively extract cephalosporins from milk samples and analyze by LC-MS/MS

Xing Xu, Yan Zhang, Ping Shu
{"title":"Magnetic molecularly imprinted polymers are used to selectively extract cephalosporins from milk samples and analyze by LC-MS/MS","authors":"Xing Xu,&nbsp;Yan Zhang,&nbsp;Ping Shu","doi":"10.1016/j.meafoo.2024.100169","DOIUrl":null,"url":null,"abstract":"<div><p>Cephalosporins were extracted from milk samples by using magnetic molecularly imprinted polymers (MMIP). To characterize the physical properties of MMIP, an experiment was conducted involving both static and dynamic adsorption. Samples were analyzed with LC-MS/MS to identify cephalosporin residues. The quantitative technique employed was the use of an isotope as an internal standard. Analysis was conducted using an Ascentis C<sub>8</sub> column with a mobile phase consisting of a 0.1 % aqueous solution of formic acid and acetonitrile. The determination coefficients varied between 0.9945 and 0.9995, as indicated by the linear equations. Cephalosporins exhibited a diverse spectrum of recovery rates, varying between 80.7 % and 118.3 %, accompanied by a range of relative standard deviations spanning from 3.8 % to 13.5 %. The detection limits for 9 kinds of cephalosporins in milk samples varied from 1 μg kg<sup>−1</sup> to 20 μg kg<sup>−1</sup>, while the quantification limits ranged from 3 μg kg<sup>−1</sup> to 60 μg kg<sup>−1</sup>. The successful implementation of the validated technique has been applied to detect 9 different kinds of cephalosporins in real milk products.</p></div>","PeriodicalId":100898,"journal":{"name":"Measurement: Food","volume":"14 ","pages":"Article 100169"},"PeriodicalIF":0.0000,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772275924000364/pdfft?md5=9155a7470ccf43dff72d2f2b0ba5c388&pid=1-s2.0-S2772275924000364-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Measurement: Food","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772275924000364","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

Abstract

Cephalosporins were extracted from milk samples by using magnetic molecularly imprinted polymers (MMIP). To characterize the physical properties of MMIP, an experiment was conducted involving both static and dynamic adsorption. Samples were analyzed with LC-MS/MS to identify cephalosporin residues. The quantitative technique employed was the use of an isotope as an internal standard. Analysis was conducted using an Ascentis C8 column with a mobile phase consisting of a 0.1 % aqueous solution of formic acid and acetonitrile. The determination coefficients varied between 0.9945 and 0.9995, as indicated by the linear equations. Cephalosporins exhibited a diverse spectrum of recovery rates, varying between 80.7 % and 118.3 %, accompanied by a range of relative standard deviations spanning from 3.8 % to 13.5 %. The detection limits for 9 kinds of cephalosporins in milk samples varied from 1 μg kg−1 to 20 μg kg−1, while the quantification limits ranged from 3 μg kg−1 to 60 μg kg−1. The successful implementation of the validated technique has been applied to detect 9 different kinds of cephalosporins in real milk products.

利用磁性分子印迹聚合物从牛奶样品中选择性提取头孢菌素,并通过 LC-MS/MS 进行分析
利用磁性分子印迹聚合物(MMIP)从牛奶样品中提取头孢菌素。为了确定 MMIP 的物理性质,进行了静态和动态吸附实验。使用 LC-MS/MS 对样品进行分析,以确定头孢菌素残留物。采用的定量技术是使用同位素作为内标。分析采用 Ascentis C8 色谱柱,流动相为 0.1 % 的甲酸和乙腈水溶液。根据线性方程,测定系数介于 0.9945 和 0.9995 之间。头孢菌素的回收率在 80.7 % 到 118.3 % 之间,相对标准偏差在 3.8 % 到 13.5 % 之间。牛奶样品中 9 种头孢菌素的检出限为 1 μg kg-1 至 20 μg kg-1,定量限为 3 μg kg-1 至 60 μg kg-1。该验证技术已成功应用于实际奶制品中 9 种头孢菌素的检测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
CiteScore
3.10
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信