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  • Title: On the interaction of vanadium species with meso-2,3-dimercaptosuccinic acid.
    Author: Williams PA, Baran EJ.
    Journal: Biol Trace Elem Res; 2006 Feb; 109(2):189-94. PubMed ID: 16444008.
    Abstract:
    The interaction of the VO2+ cation with meso-2,3-dimercaptosuccinic acid (DMSA) was investigated by electron absorption spectroscopy in aqueous solution at different pH values. The spectral behavior, complemented with a spectrophotometric titration, shows the generation of a [VO(DMSA)2]2- complex in which the oxocation interacts with two pairs of deprotonated -SH groups of the acid. It was also found that DMSA rapidly reduces VO3- to VO2+, which might be chelated by an excess of the acid. DMSA can also produce the partial reduction of a V2O5 suspension at pH=5.2. The results of this study suggest that DMSA might be a potentially useful detoxification agent for vanadium.
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