Abstract
The possibility of the simultaneous ion chromatographic determination of vanadium(IV) and vanadium(V) in the form of the EDTA complex and the EDTA monoperoxo complex, respectively, was shown. These complexes were retained strongly on the sorbent HIKS-1. The chromatographic characteristics of the EDTA complex of vanadium(V) were changed under the conditions of the experiment. The composition and the charge of the EDTA complex of vanadium(IV) and the EDTA monoperoxo complex of vanadium(V) and detection limits of vanadium(IV) and vanadium(V), were determined to be 0.2 and 1.0 mg 1 −1, respectively. The kinetics of the formation of the EDTA monoperoxo complex of vanadium(V) in the system V(IV)-EDTA-H 2O 2 are discussed.
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