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Iron(III) as activator for catalytic fluorimetric microdetermination of V(V)
A Navas1, M Santiago, F Grases
1Department of Analytical Chemistry, Faculty of Sciences, University of Malaga, Spain.
Talanta
|July 1, 1982
Abstract:
The activation of the vanadium(V)-catalysed aerial oxidation of sodium 4,8-diamino-1,5 -dihydroxyanthraquinone-2,6-disulphonate by iron(III) is discussed. The oxidation product is intensely fluorescent and allows fluorescence-monitoring of the slow reaction, which is preceded by an induction period. On the basis of this investigation, an accurate method for determination of vanadium(V) at the 1-10 ng/ml level has been developed.

