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pubmed-article:20556362pubmed:abstractTextCdTe quantum dots (QDs) were modified with thioglycolic acid (TGA) and synthesized in aqueous medium. The optimum fluorescence intensity was found to be at pH 6.24 with a CdTe QDs concentration of 4.96 x 10(-7) mol L(-1). The quenched fluorescence intensity of CdTe QDs is linearly proportional to V(V) concentration from 10 to 200 ng mL(-1) with correlation coefficient R = 0.9985. The limit of detection for V(V) was 2.07 ng mL(-1). The proposed method was successfully applied to the analysis of trace amounts of V(V) in water samples with recovery of 96.5-101.8%, and the results were in good agreement with those of electrothermal atomic absorption spectrometry.lld:pubmed
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pubmed-article:20556362pubmed:authorpubmed-author:NaJiaJlld:pubmed
pubmed-article:20556362pubmed:authorpubmed-author:HouMingMlld:pubmed
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pubmed-article:20556362pubmed:year2010lld:pubmed
pubmed-article:20556362pubmed:articleTitleDetermination of vanadium(V) with CdTe quantum dots as fluorescent probes.lld:pubmed
pubmed-article:20556362pubmed:affiliationCollege of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China. glhou@glite.edu.cnlld:pubmed
pubmed-article:20556362pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:20556362pubmed:publicationTypeResearch Support, Non-U.S. Gov'tlld:pubmed
pubmed-article:20556362pubmed:publicationTypeEvaluation Studieslld:pubmed