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Molecularly imprinted core-shell nanoparticles for determination of trace atrazine by reversible addition-fragmentation chain transfer surface imprinting
Xu, Shoufang1,2; Li, Jinhua1; Chen, Lingxin1
2011
发表期刊JOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
卷号21期号:12页码:4346-4351
产权排序[Xu, Shoufang; Li, Jinhua; Chen, Lingxin] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc,CAS, Yantai 264003, Peoples R China; [Xu, Shoufang] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
摘要A simple and effective method was proposed to prepare uniform surface-imprinted nanoparticles. This strategy was carried out by introducing vinyl groups to the surface of silica beads by a one-step modification, followed by copolymerization of functional monomers via reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization. Owing to the intrinsic advantages of controlled/living polymerization and surface imprinting technology, the resultant RAFT surface-imprinted nano-sized polymers (RAFT-SINPs) demonstrated spherical shaped particles with excellent monodispersity, and improvements in imprinting efficiency and mass transfer in comparison to molecularly imprinted polymers (MIPs) prepared by traditional precipitation polymerization. Recoveries of 93.4% and 79.8% were achieved by one-step extraction when RAFT-SINPs were used for the preconcentration and selective separation of atrazine in spiked corn and lettuce samples, respectively. These results provided the possibility for the separation and enrichment of atrazine from complicated matrices by RAFT-SINPs.; A simple and effective method was proposed to prepare uniform surface-imprinted nanoparticles. This strategy was carried out by introducing vinyl groups to the surface of silica beads by a one-step modification, followed by copolymerization of functional monomers via reversible addition-fragmentation chain transfer (RAFT) precipitation polymerization. Owing to the intrinsic advantages of controlled/living polymerization and surface imprinting technology, the resultant RAFT surface-imprinted nano-sized polymers (RAFT-SINPs) demonstrated spherical shaped particles with excellent monodispersity, and improvements in imprinting efficiency and mass transfer in comparison to molecularly imprinted polymers (MIPs) prepared by traditional precipitation polymerization. Recoveries of 93.4% and 79.8% were achieved by one-step extraction when RAFT-SINPs were used for the preconcentration and selective separation of atrazine in spiked corn and lettuce samples, respectively. These results provided the possibility for the separation and enrichment of atrazine from complicated matrices by RAFT-SINPs.
通讯作者Chen, LX, Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc,CAS, Yantai 264003, Peoples R China.lxchen@yic.ac.cn
关键词Solid-phase Extraction Silica Nanoparticles Polymer-films Recognition Matrix Tnt
作者部门环境化学实验室 
学科领域Chemistry, Physical ; Materials Science, Multidisciplinary
收录类别SCI
关键词[WOS]SOLID-PHASE EXTRACTION ; SILICA NANOPARTICLES ; POLYMER-FILMS ; RECOGNITION ; MATRIX ; TNT
文章类型Article
语种英语
WOS研究方向Chemistry ; Materials Science
WOS记录号WOS:000288220600051
引用统计
被引频次:127[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/133337/4848
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, Yantai Inst Coastal Zone Res, Shandong Prov Key Lab Coastal Zone Environm Proc, Key Lab Coastal Zone Environm Proc,CAS, 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 core-shell nanoparticles for determination of trace atrazine by reversible addition-fragmentation chain transfer surface imprinting[J]. JOURNAL OF MATERIALS CHEMISTRY,2011,21(12):4346-4351.
APA Xu, Shoufang,Li, Jinhua,&Chen, Lingxin.(2011).Molecularly imprinted core-shell nanoparticles for determination of trace atrazine by reversible addition-fragmentation chain transfer surface imprinting.JOURNAL OF MATERIALS CHEMISTRY,21(12),4346-4351.
MLA Xu, Shoufang,et al."Molecularly imprinted core-shell nanoparticles for determination of trace atrazine by reversible addition-fragmentation chain transfer surface imprinting".JOURNAL OF MATERIALS CHEMISTRY 21.12(2011):4346-4351.
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