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Molecularly imprinted polymers by reversible addition-fragmentation chain transfer precipitation polymerization for preconcentration of atrazine in food matrices
Xu, Shoufang1,2; Li, Jinhua1; Chen, Lingxin1
2011-07-15
发表期刊TALANTA
卷号85期号:1页码:282-289
产权排序(1)Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, China; (2)Graduate University, Chinese Academy of Sciences, Beijing 100049, China
摘要Controlled/living free radical polymerization (CLRP) has been accepted as an effective technique in preparation of polymers because of its inherent advantages over traditional free radical polymerization. In this work, reversible addition-fragmentation chain transfer (RAFT) polymerization, the ideal candidate for CLRP, was applied to prepare atrazine molecularly imprinted polymers (MIPs) by precipitation polymerization. The resultant RAFT-MIPs demonstrated uniform spherical shape with rough surface containing significant amounts of micropores, leading to an improvement in imprinting efficiency compared with that of the MIPs prepared by traditional precipitation polymerization (TR-MIPs). The maximum binding capacities of the RAFT-MIPs and TR-MIPs were 2.89 mg g-1 and 1.53 mg g-1, respectively. The recoveries ranging from 81.5% to 100.9% were achieved by one-step extraction by using RAFT-MIPs for preconcentration and selective separation of atrazine in spiked lettuce and corn samples. These results provided the possibility for the separation and enrichment of atrazine from complicated matrices by RAFT-MIPs.; Controlled/living free radical polymerization (CLRP) has been accepted as an effective technique in preparation of polymers because of its inherent advantages over traditional free radical polymerization. In this work, reversible addition-fragmentation chain transfer (RAFT) polymerization, the ideal candidate for CLRP, was applied to prepare atrazine molecularly imprinted polymers (MIPs) by precipitation polymerization. The resultant RAFT-MIPs demonstrated uniform spherical shape with rough surface containing significant amounts of micropores, leading to an improvement in imprinting efficiency compared with that of the MIPs prepared by traditional precipitation polymerization (TR-MIPs). The maximum binding capacities of the RAFT-MIPs and TR-MIPs were 2.89 mg g(-1) and 1.53 mg g(-1). respectively. The recoveries ranging from 81.5% to 100.9% were achieved by one-step extraction by using RAFT-MIPs for preconcentration and selective separation of atrazine in spiked lettuce and corn samples. These results provided the possibility for the separation and enrichment of atrazine from complicated matrices by RAFT-MIPs. (C) 2011 Elsevier B.V. All rights reserved.
通讯作者Chen, LX (lxchen@yic.ac.cn)
关键词Molecularly Imprinted Polymers Atrazine Reversible Addition-fragmentation Chain Transfer Precipitation Polymerization
作者部门环境化学实验室
收录类别SCI
关键词[WOS]SOLID-PHASE EXTRACTION ; CHROMATOGRAPHY ; RECOGNITION ; SURFACE ; SAMPLES ; NANOPARTICLES ; MICROSPHERES ; METABOLITES ; TRIAZINES ; MASS
文章类型Article
语种英语
WOS研究方向Chemistry
WOS记录号WOS:000292848900038
引用统计
被引频次:66[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/4953
专题环境化学实验室
中科院海岸带环境过程与生态修复重点实验室
山东省海岸带环境过程重点实验室
作者单位1.Chinese Acad Sci, Key Lab Coastal Zone Environm Proc, Shandong Prov Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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Xu, Shoufang,Li, Jinhua,Chen, Lingxin. Molecularly imprinted polymers by reversible addition-fragmentation chain transfer precipitation polymerization for preconcentration of atrazine in food matrices[J]. TALANTA,2011,85(1):282-289.
APA Xu, Shoufang,Li, Jinhua,&Chen, Lingxin.(2011).Molecularly imprinted polymers by reversible addition-fragmentation chain transfer precipitation polymerization for preconcentration of atrazine in food matrices.TALANTA,85(1),282-289.
MLA Xu, Shoufang,et al."Molecularly imprinted polymers by reversible addition-fragmentation chain transfer precipitation polymerization for preconcentration of atrazine in food matrices".TALANTA 85.1(2011):282-289.
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