ICCAS OpenIR
Characterization of rhodamine B hydroxylamide as a highly selective and sensitive fluorescence probe for copper(II)
Chen, Xinqi; Jia, Jia; Ma, Huimin; Wang, Shujuan; Wang, Xiaochun
2009-01-19
Source PublicationANALYTICA CHIMICA ACTA
ISSN0003-2670
Volume632Issue:1Pages:9-14
AbstractRhodamine B hydroxylamide (1) is characterized as a highly selective and sensitive fluorescence probe for Cu(2+). Under the optimized conditions, the probe exhibits specific absorbance-on and fluorescence-on responses to Cu(2+) only. This remarkable property may allow Cu(2+) to be detected directly in the presence of the other transition metal ions, and such an application has been demonstrated to human serum. The reaction mechanism is also investigated and proposed as that the hydroxylamide group of 1 binds Cu(2+), and the subsequent complexation of Cu(2+) displays a high catalytic activity for the hydrolytic cleavage of the amide bond, causing the release of fluorophore (rhodamine B) and thereby the retrievement of absorbance and fluorescence. The recovered fluorescence intensity is proportional to the concentration of Cu(2+) in the range 1-20 mu M. The detection lit-nit for Cu(2+) is 33 nM (k = 3). The reaction mechanism described here may be useful for developing excellent spectroscopic probes with cleavable active bonds for other analytes. (C) 2007 Elsevier B.V. All rights reserved.
KeywordRhodamine b Hydroxylamide Fluorescence Probe Cu(2+) Cleavable Active Bond Fluorescence Enhancement
DOI10.1016/j.aca.2007.08.025
Indexed BySCI ; ISTP
Language英语
WOS IDWOS:000262585500002
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:71[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67536
Collection中国科学院化学研究所
Corresponding AuthorMa, Huimin
AffiliationChinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Chen, Xinqi,Jia, Jia,Ma, Huimin,et al. Characterization of rhodamine B hydroxylamide as a highly selective and sensitive fluorescence probe for copper(II)[J]. ANALYTICA CHIMICA ACTA,2009,632(1):9-14.
APA Chen, Xinqi,Jia, Jia,Ma, Huimin,Wang, Shujuan,&Wang, Xiaochun.(2009).Characterization of rhodamine B hydroxylamide as a highly selective and sensitive fluorescence probe for copper(II).ANALYTICA CHIMICA ACTA,632(1),9-14.
MLA Chen, Xinqi,et al."Characterization of rhodamine B hydroxylamide as a highly selective and sensitive fluorescence probe for copper(II)".ANALYTICA CHIMICA ACTA 632.1(2009):9-14.
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