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Determination of Trace Sulfonamides in Environmental Water and Milk Through Capillary Electrochromatography Using PEG-MoS 2 as Stationary Phase
Food Analytical Methods ( IF 2.6 ) Pub Date : 2019-11-28 , DOI: 10.1007/s12161-019-01676-4
Zhimin Cai , Xuan Wang , Jianxin An , Qiqi Zhang , Xiaotong Jin , Han Yin , Yutong Shao , Yuhong Xiang , Nengsheng Ye

Abstract

In this work, a composite of polyethylene glycol (PEG) modified MoS2 (PEG-MoS2) was synthesized and used as the stationary phase of open-tubular capillary column via a chemical bonding strategy. The PEG-MoS2 exhibited a sphere-like architecture through characterization of scanning electronic microscopy. p-phenylenediboronic acid was introduced as a linker to combine the PEG-MoS2 with capillary column. A capillary electrochromatographic method was established for the determination of nine sulfonamides by using PEG-MoS2-coated capillary column. The intra-day, inter-day, and column-to-column relative standard deviations (RSDs) of migration time and peak area were in the range of 0.80–4.38% and 1.61–9.22%, respectively. The limits of detection were in the range of 20.4–64.8 ng/mL. The recoveries in environmental water and milk were from 83.26 to 116.29% and 80.86 to 118.22%. This work is the first report that PEG-MoS2 material is utilized as stationary phase for capillary electrochromatography.



中文翻译:

毛细管电色谱法以PEG-MoS 2为固定相测定环境水和牛奶中的痕量磺酰胺

摘要

在这项工作中,合成了聚乙二醇(PEG)改性的MoS 2(PEG-MoS 2)的复合物,并通过化学键合策略将其用作开管毛细管柱的固定相。通过扫描电子显微镜的表征,PEG-MoS 2表现出球形结构。引入对苯二甲硼酸作为连接体,将PEG-MoS 2与毛细管柱结合。建立了一种毛细管电色谱法,用于使用PEG-MoS 2测定九种磺酰胺涂层毛细管柱。迁移时间和峰面积的日内,日间和列间相对标准偏差(RSD)分别在0.80–4.38%和1.61–9.22%的范围内。检测限在20.4–64.8 ng / mL范围内。环境水和牛奶的回收率分别为83.26%至116.29%和80.86%至118.22%。这项工作是有关PEG-MoS 2材料用作毛细管电色谱固定相的第一份报告。

更新日期:2020-01-23
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