Well-defined sulfamethazine-imprinted magnetic nanoparticles via surface-initiated atom transfer radical polymerization for highly selective enrichment of sulfonamides in food samples

	Well-defined sulfamethazine-imprinted magnetic nanoparticles via surface-initiated atom transfer radical polymerization for highly selective enrichment of sulfonamides in food samples
	Mao, Xuedong 1,2; Sun, Hongyu 1,2; He, Xiwen 1,2; Chen, Langxing 1,2; Zhang, Yukui 1,2,3
刊名	analytical methods
	2015
卷号	7 期号:11 页码:4708-4716
英文摘要	in this work, a novel kind of core-shell magnetic molecularly imprinted polymer (mip) for sulfamethazine (smz) was synthesized by the surface-initiated atom transfer radical polymerization (atrp) strategy. in this protocol, polydopamine was formed on the fe3o4 nanoparticles (nps) in 10 mm tris-hcl buffer solution (ph 8.5). the initiator bromide reagent of atrp was then grafted onto the polydopamine surface. finally, the mip layer was formed on the surface of fe3o4 by the copolymerization of sulfamethazine as a template, methacrylic acid as a functional monomer, and ethylene glycol dimethacrylate as a cross-linking agent using an organometallic catalyst comprising cu(i) br and pentamethyldiethylenetriamine. the morphology and magnetic, adsorption and recognition properties of fe3o4@smz-mip nps were characterized using transmission electron microscopy (tem), fourier transform infrared (ft-ir) spectroscopy, vibrating sample magnetometry (vsm), x-ray diffraction (xrd), thermogravimetric analysis (tga) and re-binding experiments. the controllable nature of atrp allows the growth of a uniform mip layer with adjustable thickness, providing a large adsorption capacity (680.27 mu g g(-1)), fast kinetics about 40 min to equilibrium, and a considerably high imprinting factor of 17.02. the feasibility of the enrichment of sulfonamides by fe3o4@smz-mip was demonstrated using egg samples spiked with smz and smr. the recoveries of smz and smr ranged from 76.7 to 93.0% and 69.3 to 77.2%, respectively, and the relative standard deviations (rsd) were <7.0%. in addition, fe3o4@smz-mip showed good reusability for at least five repeated cycles.
WOS标题词	science & technology ; physical sciences ; life sciences & biomedicine ; technology
类目[WOS]	chemistry, analytical ; food science & technology ; spectroscopy
研究领域[WOS]	chemistry ; food science & technology ; spectroscopy
关键词[WOS]	solid-phase extraction ; performance liquid-chromatography ; tandem mass-spectrometry ; multiwalled carbon nanotubes ; hplc determination ; multiclass method ; polymers ; milk ; sulfamethoxazole ; microextraction
收录类别	SCI
语种	英语
WOS记录号	WOS:000355557500038
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/146302]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Nankai Univ, Coll Chem, Res Ctr Analyt Sci, State Key Lab Med Chem Biol, Tianjin 300071, Peoples R China 2.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Mao, Xuedong,Sun, Hongyu,He, Xiwen,et al. Well-defined sulfamethazine-imprinted magnetic nanoparticles via surface-initiated atom transfer radical polymerization for highly selective enrichment of sulfonamides in food samples[J]. analytical methods,2015,7(11):4708-4716.
APA	Mao, Xuedong,Sun, Hongyu,He, Xiwen,Chen, Langxing,&Zhang, Yukui.(2015).Well-defined sulfamethazine-imprinted magnetic nanoparticles via surface-initiated atom transfer radical polymerization for highly selective enrichment of sulfonamides in food samples.analytical methods,7(11),4708-4716.
MLA	Mao, Xuedong,et al."Well-defined sulfamethazine-imprinted magnetic nanoparticles via surface-initiated atom transfer radical polymerization for highly selective enrichment of sulfonamides in food samples".analytical methods 7.11(2015):4708-4716.