文献类型：期刊文献

英文题名：Rapid detection of sulfamethoxazole in plasma and food samples with in-syringe membrane SPE coupled with solid-phase fluorescence spectrometry

作者：Li, Long[1];Zhu, Ying[1];Zhang, Feiyu[1];Li, Hui[2];Iqbal, Jibran[3];Wu, Ting[1];Du, Yiping[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Dehong Teachers Coll, Dept Sci & Engn, Xianchi Rd 14, Mangshi 678400, Peoples R China;[3]Zayed Univ, Coll Nat & Hlth Sci, Abu Dhabi, U Arab Emirates

年份：2020

卷号：320

外文期刊名：FOOD CHEMISTRY

收录：;EI(收录号：20201208313462);WOS:【SCI-EXPANDED(收录号:WOS:000527557100050)】；

基金：This work was supported by Science and Technology Commission of Shanghai Municipality (No. 17142201100).

语种：英文

外文关键词：In-syringe solid-phase extraction; Solid-phase fluorescence; Sulfamethoxazole; Fluorescamine; Food samples

摘要：In this work, in-syringe membrane solid-phase extraction (MSPE) device was fabricated for the on-site sampling of sulfamethoxazole (SMX) in food samples followed by solid-phase fluorescence spectra analysis. The samples and fluorescamine (FA) were added to a syringe for derivation. Then, the derivative of SMX was extracted by a membrane in the syringe SPE device. Subsequently, the derivative on the membrane was measured immediately without additional elution procedure. The method was successfully applied in plasma, milk, and egg samples for the trace SMX detection, with the recovery of 98%-102%, RSDs from 1% to 6%. Compared with liquid chromatography, direct detection of the concentrated analyte significantly improved the sensitivity. Moreover, fluorescamine made it unnecessary to separate SMX from the interference. Consequently, it was a time-saving, low-cost, and easy-operation method, which demonstrated the potential of in-syringe SPE as a promising candidate for on-site analysis.