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Speciation of Thallium by Flow Injection Analysis with Spectrofluorimetric Detection

✍ Scribed by Ali A. Ensafi; B. Rezaei

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
168 KB
Volume
60
Category
Article
ISSN
0026-265X

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✦ Synopsis

A flow injection configuration is proposed for the speciation and determination of thallium(I) and thallium(III) in aqueous media by spectrofluorimetric detection. Thallium(I) can be determined by measuring its fluorescence as TlCl 3 2Οͺ . Thallium(III) also is determined after the rapid reduction of this ion by hydrazine into thallium(I). The construction of a suitable value in the manifold allows the successive determination of these ions at concentrations as low as 10 Οͺ7 M. The effect of potential interfering species on the determination was studied. The method was successfully applied to the determination of thallium in synthetic and real samples.

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