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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
Source PublicationCHINESE CHEMICAL LETTERS
Volume21Issue:11Pages:1378-1381
SubtypeArticle
AbstractA 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.
KeywordPotentiometry Functionalized Magnetic Nanoparticles Polyions Ion-selective Electrodes
DOI10.1016/j.cclet.2010.06.003
Indexed BySCI
Language英语
WOS IDWOS:000283899700031
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/32855
Collection海洋生态与环境科学重点实验室
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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