Fast determination of sulfonamides from egg samples using magnetic multiwalled carbon nanotubes as adsorbents followed by liquid chromatography-tandem mass spectrometry
Fast determination of sulfonamides from egg samples using magnetic multiwalled carbon nanotubes as adsorbents followed by liquid chromatography-tandem mass spectrometry
复制标题
使用磁性多壁碳纳米管作为吸附剂并采用液相色谱-串联质谱法快速测定鸡蛋样品中的磺胺类药物
DOI：
10.1016/j.foodchem.2013.02.078
复制
发表时间：
2013-09-15
期刊：
影响因子：
8.8
通讯作者：
Ren, Nanqi
中科院分区：
文献类型：
--
作者：
Xu, Yang;Ding, Jie;Ren, Nanqi
以磁性多壁碳纳米管(MMWCNTs)为吸附剂，建立了一种简单有效的从鸡蛋样品中提取磺胺类化合物的磁选方法。MMWCNT是通过将Fe3O4沉积到先前被氧化的MWCNT上而简单地制备的。通过混合和搅拌MMWCNTs和鸡蛋水样的混合物，一步完成了提取过程。首先如上所述地提取SA，然后直接吸附在MMWCNTs上，最后用液相色谱-串联质谱仪进行分析。方法的检出限为1.4-2.8 ng g(-1)。该方法已成功地应用于用SA标准饲喂蛋鸡的鸡蛋中SA的测定，并与当地市场上购买的鸡蛋进行了比较。结果表明，在诱发的虫卵样本中可检测到SAS。(C)2013爱思唯尔有限公司。保留所有权利。
A simple and effective method based on magnetic separation has been developed for the extraction of sulfonamides (SAs) from egg samples using magnetic multiwalled carbon nanotubes (MMWCNTs) as an adsorbent. The MMWCNTs were simply prepared by depositing Fe3O4 onto MWCNTs that had been previously oxidised. The extraction procedure was carried out in a single step by blending and subsequently stirring the mixture of MMWCNTs and aqueous egg samples. The SAs were first extracted as described above, adsorbed onto the MMWCNTs directly and finally analysed by liquid chromatography-tandem mass spectrometry. The limits of detection obtained are in the range of 1.4-2.8 ng g(-1). The proposed method was successfully applied in determining SAs in the eggs obtained from laying hens fed with SA standards, and compared to eggs purchased from local markets. The results demonstrate that SAs were detectable in the incurred egg samples. (C) 2013 Elsevier Ltd. All rights reserved.