期刊
JOURNAL OF CHROMATOGRAPHY A
卷 1246, 期 -, 页码 15-21出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2012.01.045
关键词
Surface molecularly imprinted polymer; Atom transfer radical polymerization; Magnetic nanoparticles; Pefloxacin mesylate; Egg sample
The novel superparamagnetic surface molecularly imprinted Fe3O4@MIP nanoparticles for water-soluble pefloxacin mesylate (PEF-M) were prepared via surface initiated atom transfer radical polymerization (si-ATRP). The binary mixture of methanol and water was selected as the polar solvents for fabricating PEF-M imprinted MIPs. The Fe3O4@MIP exhibited high saturation magnetization of 41.4 emu/g leading to the fast separation. The adsorption behaviors indicated that the Fe3O4@MIP nanoparticles possessed specific recognition and high affinity towards template PEF-M in aqueous media. Moreover. Fe3O4@MIP nanoparticles were directly used to selectively enrich PEF-M from egg samples. By RP-HPLC analysis, the recoveries of PEF-M were obtained as 92.8-96.5% with relative standard division of 2.4-4.0%. (C) 2012 Elsevier B.V. All rights reserved.
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