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Reference type: Journal
Authors: Zhou YS, Zhou TT, Jin H, Jing T, Song B, Zhou YK, Mei SR, Lee YI
Article Title: Rapid and selective extraction of multiple macrolide antibiotics in foodstuff samples based on magnetic molecularly imprinted polymers.
Publication date: 2015
Journal: Talanta
Volume: 137
Page numbers: 1-10.
DOI: 10.1016/j.talanta.2015.01.008
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0039914015000132

Abstract: Magnetic molecularly imprinted polymers (MMIPs) were prepared based on surface molecular imprinting using erythromycin (ERY) as template molecule and Fe3O4 nanoparticles as support substrate. The MMIPs possessed high adsorption capacity of 94.1 mg/g for ERY and the imprinting factor was 11.9 indicating good imprinted effect for ERY. Selective evaluation demonstrated favorable selectivity of MMIPs for multiple macrolide antibiotics (MACs). Using MMIPs as adsorptive material, a rapid and convenient magnetic solid-phase extraction (MSPE) procedure was established for simultaneous and selective separation of six MACs in pork, fish and shrimp samples, then the MACs was subjected to high-performance liquid chromatography-ultraviolet (HPLC-UV) analysis. At different fortified concentrations, the extraction recoveries could reach 89.1% and the relative standard deviations were lower than 12.4%. Chromatogram revealed the response signals of MACs in spiked samples were greatly enhanced and matrix interferences were effectively eliminated after treatment with MSPE. The proposed MSPE procedure coupled with HPLC-UV realized selective and sensitive determination of multiple MACs in foodstuff samples
Template and target information: erythromycin, ERY
Author keywords: Magnetic molecularly imprinted polymers, Magnetic solid-phase extraction, Macrolide antibiotics, Foodstuff samples


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