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Spectrofluorimetric determination of trace amounts of europium(III) ion with lutetium(III)-sparfloxacin-sodium dodecyl sulfate luminescence enhancement system.
MedLine Citation:
PMID:  15352518     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
A new luminescence-enhancement system based on complex formation between europium and sparfloxacin in the presence of lutetium in a sodium dodecyl sulfate solution has been discovered. By adding a suitable amount of Lu3+ to the Eu-sparfloxacin-sodium dodecyl sulfate system, the luminescence can be enhanced by approximately 5-fold compared with that of the system without Lu3+. Under the optimum conditions, the luminescence intensity of the system is a linear function of the concentration of europium in the range of 1.0 x 10(-10) - 5.0 x 10(-7) mol L(-1). The detection limit of europium is 2.0 x 10(-13) mol L(-1) (S/N = 3). The system was used for the determination of trace amounts of europium in rare earth samples with satisfactory results.
Authors:
Lei Wang
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Analytical sciences : the international journal of the Japan Society for Analytical Chemistry     Volume:  20     ISSN:  0910-6340     ISO Abbreviation:  Anal Sci     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-09-08     Completed Date:  2004-11-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511078     Medline TA:  Anal Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1237-9     Citation Subset:  -    
Affiliation:
School of Pharmacy, Shandong University, Jinan, China. wangl-sdu@sdu.edu.cn
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