Fragment-imprinted microspheres for the extraction of sulfonamides

被引：9

作者：

He, Juan ^{[1
]}

Tang, Hongzhe ^{[1
]}

You, Liqin ^{[1
]}

Zhan, Haijun ^{[1
]}

Zhu, Jing ^{[1
]}

Lu, Kui ^{[1
]}

机构：

[1] Henan Univ Technol, Sch Chem & Chem Engn, Zhengzhou 450001, Peoples R China

来源：

MICROCHIMICA ACTA | 2013年 / 180卷 / 9-10期

关键词：

4-Sulfa-6-Chloropyrimidine; Fragment-Imprinted Microspheres; Suspension Polymerization; Sulfonamides; SOLID-PHASE EXTRACTION; PERFORMANCE LIQUID-CHROMATOGRAPHY; TANDEM MASS-SPECTROMETRY; POLYMER; MILK; ANTIBIOTICS; RECOGNITION;

D O I：

10.1007/s00604-013-1011-x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Fragment-imprinted microspheres (FIMs) were synthesized by suspension polymerization of 4-sulfa-6-chloropyrimidine (the template), methacrylic acid and styrene (the mixed functional monomers), divinylbenzene (the crosslinker), and azobisisobutyronitrile (the initiator). The optimum conditions were obtained by an orthogonal experiment. After removal of the templates, the microspheres serve as a material to fairly specifically bind sulfonamides, the absorption capacity being 6.32 mg g(-1), whereas the absorption by non-imprinted microspheres is 1.68 mg g(-1). A method was worked out for the simultaneous determination of five sulfonamides by solid phase extraction (using the FIMs) coupled to HPLC, and applied to analyze milk samples. The recoveries are within 87.6 and 96.5 %, with relative standard deviations between 1.25 and 2.89 %.

引用

页码：903 / 910

页数：8

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