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题名:
Potentiometric sensor based on molecularly imprinted polymer for determination of melamine in milk
作者: Liang, RongNing(梁荣宁)1,2,3; Zhang, Ruiming1,3; Wei Qin(秦伟)1,4
刊名: SENSORS AND ACTUATORS B-CHEMICAL
出版日期: 2009-09-07
卷号: 141, 期号:2, 页码:544-550
关键词: Molecularly imprinted polymer ; Potentiometric sensor ; Melamine ; Ion-selective electrode ; Flow analysis
学科分类: Chemistry ; Analytical; Electrochemistry; Instruments & Instrumentation
产权排序: Chinese Acad Sci, Environm Chem Lab, Yantai Inst Coastal Zone Res Sustainable Dev;Chinese Acad Sci, S China Sea Inst Oceanol;Chinese Acad Sci, Grad Sch;Yantai Univ, Sch Oceanol
通讯作者: Qin, W, Chinese Acad Sci, Environm Chem Lab, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
作者部门: 环境化学实验室
英文摘要: A polymeric membrane ion-selective electrode for determination of melamine is described in this paper. it is based on a molecularly imprinted polymer (MIP) for selective recognition, which can be synthesized by using melamine as a template molecule, methacrylic acid as a functional monomer and ethylene glycol dimethacrylate as a cross-linking agent. The membrane electrode shows near-Nernstian response (54 mV/decade) to the protonated melamine over the concentration range of 5.0 x 10(-6) to 1.0 x 10(-2) mol L(-1). The electrode exhibits a short response time of similar to 16 s and can be stable for more than 2 months. Combined with flow analysis system, the potentiometric sensor has been successfully applied to the determination of melamine in milk samples. Interference from high concentrations of ions co-existing in milk samples such as K(+) and Na(+) can be effectively eliminated by on-line introduction of anion- and cation-exchanger tandem columns placed upstream, while melamine existing as neutral molecules in milk of pH 6.7 can flow through the ion-exchanger columns and be measured downstream by the proposed electrode in an acetate buffer solution of pH 3.7. (C) 2009 Elsevier BY. All rights reserved.
研究领域[WOS]: Chemistry ; Electrochemistry ; Instruments & Instrumentation
关键词[WOS]: ION-SELECTIVE ELECTRODES ; SOLID-PHASE EXTRACTION ; LIQUID-CHROMATOGRAPHY ; BIOMIMETIC SENSORS ; RECOGNITION ; MEMBRANES ; ATRAZINE ; PROTAMINE ; RESIDUES ; BINDING
文章类型: Article
收录类别: SCI
语种: 英语
WOS记录号: WOS:000270343000030
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/3444
Appears in Collections:环境化学实验室_期刊论文
中科院海岸带环境过程与生态修复重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Environm Chem Lab, Yantai Inst Coastal Zone Res Sustainable Dev, Yantai 264003, Peoples R China
2.Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
4.Yantai Univ, Sch Oceanol, Yantai 264005, Peoples R China

Recommended Citation:
Liang, Rongning,Zhang, Ruiming,Qin, Wei. Potentiometric sensor based on molecularly imprinted polymer for determination of melamine in milk[J]. SENSORS AND ACTUATORS B-CHEMICAL,2009,141(2):544-550.
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