| 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
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| 发表期刊 | TALANTA
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| 2011-07-15 | |
| 卷号 | 85期号:1页码:282-289 |
| 关键词 | Molecularly Imprinted Polymers Atrazine Reversible Addition-fragmentation Chain Transfer Precipitation Polymerization |
| 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 |
| 通讯作者 | Chen, LX ([email protected]) |
| 作者部门 | 环境化学实验室 |
| 英文摘要 | 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. |
| 文章类型 | Article |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SOLID-PHASE EXTRACTION ; CHROMATOGRAPHY ; RECOGNITION ; SURFACE ; SAMPLES ; NANOPARTICLES ; MICROSPHERES ; METABOLITES ; TRIAZINES ; MASS |
| 研究领域[WOS] | Chemistry |
| WOS记录号 | WOS:000292848900038 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/4952 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心 中国科学院海岸带环境过程与生态修复重点实验室 |
| 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 |
| 推荐引用方式 GB/T 7714 | 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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