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Potentiometric detection of polyions based on functionalized magnetic nanoparticles
Song, De An1,2,3; Liang, Rong Ning1,3; Zhang, Rui Ming1,3; Ding, Jia Wang1,3; Zhang, Jun1,2,3; Qin, Wei1
2010-11-01
发表期刊CHINESE CHEMICAL LETTERS
卷号21期号:11页码:1378-1381
文章类型Article
摘要A novel potentiometric detection strategy based on functionalized magnetic nanoparticles has been developed for rapid and sensitive sensing of polyions. Highly dispersed magnetic nanoparticles coated with ion exchanger and plasticizer could promote an in situ cooperative ion-pairing interaction between the ion exchanger and the polyion analyte in sample solution by dramatically reducing the mass-transfer distance. With applying a magnetic field, the nanoparticles can be attached to the surface of ion exchanger free polymeric membrane. The observed potential signals are related to the polyion concentrations. The proposed polymeric membrane electrode exhibits a linear relationship between the greatest potential response slope (dE/dt) and the logarithm of protamine concentration in the range of 0.05-5 mu g/mLwith a lower detection limit of 0.033 mu g/mL. (C) 2010 Wei Qin. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
关键词Potentiometry Functionalized Magnetic Nanoparticles Polyions Ion-selective Electrodes
DOI10.1016/j.cclet.2010.06.003
收录类别SCI
语种英语
WOS记录号WOS:000283899700031
引用统计
被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/32855
专题海洋生态与环境科学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Coastal Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
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GB/T 7714
Song, De An,Liang, Rong Ning,Zhang, Rui Ming,et al. Potentiometric detection of polyions based on functionalized magnetic nanoparticles[J]. CHINESE CHEMICAL LETTERS,2010,21(11):1378-1381.
APA Song, De An,Liang, Rong Ning,Zhang, Rui Ming,Ding, Jia Wang,Zhang, Jun,&Qin, Wei.(2010).Potentiometric detection of polyions based on functionalized magnetic nanoparticles.CHINESE CHEMICAL LETTERS,21(11),1378-1381.
MLA Song, De An,et al."Potentiometric detection of polyions based on functionalized magnetic nanoparticles".CHINESE CHEMICAL LETTERS 21.11(2010):1378-1381.
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