Well-defined magnetic surface imprinted nanoparticles for selective enrichment of 2,4-dichlorophenoxyacetic acid in real samples

	Well-defined magnetic surface imprinted nanoparticles for selective enrichment of 2,4-dichlorophenoxyacetic acid in real samples
	Sheng, Le 1,2; Jin, Yulong 2,3; He, Yonghuan 2,3; Huang, Yanyan 2,3; Yan, Liushui 1; Zhao, Rui 2,3
刊名	TALANTA
	2017-11-01
卷号	174 页码:725-732
关键词	Molecularly Imprinted Polymer Reversible Addition-fragmentation Chain Transfer Polymerization Superparamagnetic Chinese Cabbage 2 4-dichlorophenoxyacetic Acid
英文摘要	Superparamagnetic core-shell molecularly imprinted polymer nanoparticles (MIPs) were prepared via surface initiated reversible-addition fragmentation chain transfer (si-RAFT) polymerization for the selective recognition of 2,4-dichlorophenoxyacetic acid (2,4-D) in real samples. The construction of uniform core-shell structure with a 50 nm MIP layer was successfully accomplished, which favored mass transfer and resulted in fast recognition kinetics. The static equilibrium experiments revealed the satisfied adsorption capacity and imprinting efficiency of Fe3O4@MIP. Moreover, the Fe3O4@MIP exhibited high selectivity and affinity towards 2,4-D over structural analogues. The prepared Fe3O4@MIP nanoparticles were used for the selective enrichment of 2,4-D in tap water and Chinese cabbage samples. Combined with RP-HPLC, the recoveries of 2,4-D were calculated from 93.1% to 103.3% with RSD of 1.7-5.4% (n = 3) in Chinese cabbage samples. This work provides a versatile approach for fabricating well-constructed core-shell MIP nanoparticles for rapid enrichment and highly selective separation of target molecules in real samples.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/41043]
专题	化学研究所_活体分析化学实验室
作者单位	1.Nanchang Hangkong Univ, Sch Environm & Chem Engn, Nanchang 330063, Jiangxi, Peoples R China 2.Chinese Acad Sci, CAS Key Lab Analyt Chem Living Biosyst, CAS Res Educ Ctr Excellence Mol Sci, Beijing Natl Lab Mol Sci,Inst Chem, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Le,Jin, Yulong,He, Yonghuan,et al. Well-defined magnetic surface imprinted nanoparticles for selective enrichment of 2,4-dichlorophenoxyacetic acid in real samples[J]. TALANTA,2017,174:725-732.
APA	Sheng, Le,Jin, Yulong,He, Yonghuan,Huang, Yanyan,Yan, Liushui,&Zhao, Rui.(2017).Well-defined magnetic surface imprinted nanoparticles for selective enrichment of 2,4-dichlorophenoxyacetic acid in real samples.TALANTA,174,725-732.
MLA	Sheng, Le,et al."Well-defined magnetic surface imprinted nanoparticles for selective enrichment of 2,4-dichlorophenoxyacetic acid in real samples".TALANTA 174(2017):725-732.