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Reference type: Journal
Authors: Li L, Lin ZZ, Chen XM, Zhang HY, Lin YD, Lai ZZ, Huang ZY
Article Title: Molecularly imprinted polymers for extraction of malachite green from fish samples prior to its determination by HPLC.
Publication date: 2015
Journal: Microchimica Acta
Volume: 182
Issue: (9-10)
Page numbers: 1791-1796.
DOI: 10.1007/s00604-015-1513-9

Abstract: Molecularly imprinted polymer (MIP) particles for malachite green (MG) were prepared by emulsion polymerization using methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker, and a combination of Span-80 and Tween-80 as an emulsifier. The MIP particles were characterized by SEM micrographs and FT-IR spectra. Their binding capacity for MG was evaluated based on kinetic and isothermal adsorption experiments and compared to non-imprinted polymer particles. Analytical figures of merit include an adsorption equilibrium time of 15 min, an adsorption capacity of 1.9 mg g-1 in acetonitrile-water (20:80), and an imprinting factor of 1.85. The MIP particles were successfully applied to the extraction of MG from fish samples spiked with MG and the other interfering substances prior to its determination of MG by HPLC. Spiked samples gave recoveries of MG that ranged from 86 to 104 %, much higher than that of the other interfering substance
Template and target information: malachite greeen, MG
Author keywords: Molecularly imprinted polymers, Malachite green, emulsion polymerization, Aquatic products, HPLC determination

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