Journal of Chromatography A 2012 DOI: 10.1016/j.chroma.2011.11.026 View full text
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Jiangeng Huang, Juanjuan Liu, Cong Zhang, Jiaojiao Wei, Li Mei, Shan Yu, Gao Li, Li Xu

Abstract: In the present study, a simple and sensitive extraction method based on polypropylene membrane-protected micro-solid phase extraction (MP-μ-SPE) has been developed for analysis of sulfonamides in food samples. Poly (methacrylic acid-ethylene glycol dimethacrylate) (p-MAA-EDMA) was synthesized using orthogonal array experimental design, optimized with three factors at four levels and evaluated on yield, hydrophobic and cation-exchange properties. The optimized p-MAA-EDMA was then employed as the sorbent in the …

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