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题名: Phenylurea herbicides-selective polymer prepared by molecular imprinting using N-(4-isopropylphenyl)-N'-butyleneurea as dummy template
作者: Wang, JC;  Guo, RB;  Chen, JP;  Zhang, Q;  Liang, XM
通讯作者: 梁鑫淼
关键词: molecularly imprinted polymer ;  phenylurea herbicides ;  N-(4-isopropylphenyl)-N'-butyleneurea ;  dummy template
刊名: ANALYTICA CHIMICA ACTA
发表日期: 2005-06-01
DOI: 10.1016/j.aca.2005.03.057
卷: 540, 期:2, 页:307-315
收录类别: SCI
文章类型: Article
部门归属: 1,18
项目归属: 103,1803
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: A phenylurea herbicides-selective molecularly imprinted polymer (MIP) was prepared using N-(4-isopropylphenyl)-N'-butyleneurea as a dummy template and toluene as a porogen. The experimental results showed that the optimum molar ratio of template, functional monomer (MAA) and cross-linker (EDMA) was 1:8:20. Scatchard analysis showed that two classes of binding sites were formed in the imprinted polymer with dissociation constants of 26.81 mu L mol l(-1) and 1.428 mmol l(-1). The affinity and selectivity of MIP for phenylurea herbicides were studied. Among the 14 phenylurea herbicides tested, the MIP prepared showed obviously high affinity and selectivity for 10 chemicals (monuron, diuron, isoproturon, fenuron, chlortoluron, difenoxuron, metoxuron, neburon, buturon and fluometuron) with dichloromethane containing 10% hexane as mobile phase while non-imprinted polymer showed very low affinity for all the phenylurea herbicides tested. The experimental and calculated results also indicated that the size and property of the group at the N' position of phenylurea molecules have great influence on the affinity of MIP for them and the recognition site is mainly located at the N' position of phenylurea herbicides. (c) 2005 Elsevier B.V. All rights reserved.
关键词[WOS]: SOLID-PHASE EXTRACTION ;  DENSITY-FUNCTIONAL THERMOCHEMISTRY ;  BIOMIMETIC SENSORS ;  BINDING ASSAYS ;  RECOGNITION ;  ATRAZINE ;  ACID ;  PRECONCENTRATION ;  CHROMATOGRAPHY ;  BIOANALYSIS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000229346900010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/92513
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Wang, JC,Guo, RB,Chen, JP,et al. Phenylurea herbicides-selective polymer prepared by molecular imprinting using N-(4-isopropylphenyl)-N'-butyleneurea as dummy template[J]. ANALYTICA CHIMICA ACTA,2005,540(2):307-315.
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