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Spectrofluorometric determination of trace amounts of terbium with 4-chlorosalicylic acid, EDTA, and cetyltrimethylammonium bromide.
MedLine Citation:
PMID:  12834236     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The quadruple complex formed by terbium with 4-chlorosalicylic acid (CSA), EDTA and cetyltrimethylammonium bromide (CTMAB) has been used for the sensitive spectrofluorometric determination of terbium in mixed rare earths. The effect of the experimental conditions on the fluorescence intensity was defined. Under the optimum conditions selected, the fluorescence intensity was linear with the terbium concentration in the range of 3.0 x 10(-8)-1.0 x 10(-5) mol/L with a detection limit of 8.0 x 10(-9) mol/L (S/N = 3). It has been satisfactory for the determination of terbium in mixed rare earths with good recovery.
Wei Jiang; Yu Feng; YuDao Ma; NaiXing Wang; ZhiKun Si
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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:  19     ISSN:  0910-6340     ISO Abbreviation:  Anal Sci     Publication Date:  2003 Jun 
Date Detail:
Created Date:  2003-07-01     Completed Date:  2003-09-26     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511078     Medline TA:  Anal Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  923-5     Citation Subset:  -    
School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P.R. China.
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