ICCAS OpenIR
Cationic conjugated polyelectrolyte-based fluorometric detection of copper(II) ions in aqueous solution
Xing, Chengfen1; Shi, Zhiqiang1; Yu, Minghui2; Wang, Shu2
2008-05-27
Source PublicationPOLYMER
ISSN0032-3861
Volume49Issue:11Pages:2698-2703
AbstractA series of water-soluble cationic polyfluorene copolymer containing 2,2'-bipyridine moieties (PFP-P1-3) in the backbone were designed and synthesized as the fluorescent probes for Cu2+ ions. In the absence of the Cu2+ ion, the PFP-P-2 exhibits strong fluorescence emission in aqueous solution. Upon adding the Cu2+ ion, the PFP-P-2 Coordinates to Cu2+ ions throUgh weak N center dot center dot center dot Cu interactions, and its fluorescence is efficiently quenched by the Cu2+ ion with a Stern-Volmer constant (K-SV) of 1.44 x 10(7) M-1. The new method has high sensitivity with a detection limit of 20 nM. The minor interference from other heavy metal ions clearly shows that the PFP-P-2 can be used as the Cu2+ ion probe with good selectivity. (c) 2008 Elsevier Ltd. All rights reserved.
KeywordConjugated Polyelectrolytes Copper(Ii) Ions Fluorescence Sensors
DOI10.1016/j.polymer.2008.04.029
Indexed BySCI
Language英语
WOS IDWOS:000256695600011
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64896
Collection中国科学院化学研究所
Corresponding AuthorShi, Zhiqiang
Affiliation1.Shandong Normal Univ, Dept Chem, Jinan 250014, Shandong, Peoples R China
2.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Xing, Chengfen,Shi, Zhiqiang,Yu, Minghui,et al. Cationic conjugated polyelectrolyte-based fluorometric detection of copper(II) ions in aqueous solution[J]. POLYMER,2008,49(11):2698-2703.
APA Xing, Chengfen,Shi, Zhiqiang,Yu, Minghui,&Wang, Shu.(2008).Cationic conjugated polyelectrolyte-based fluorometric detection of copper(II) ions in aqueous solution.POLYMER,49(11),2698-2703.
MLA Xing, Chengfen,et al."Cationic conjugated polyelectrolyte-based fluorometric detection of copper(II) ions in aqueous solution".POLYMER 49.11(2008):2698-2703.
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