Relatively long-lived chromium(V) species are produced by the action of glutathione on carcinogenic chromium(VI) |
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| Authors: | D M Goodgame A M Joy |
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| Affiliation: | 1. School of Chemistry, Molecular Sciences Institute, University of the Witwatersrand, Johannesburg, South Africa;2. International Water Management Institute, Accra, Ghana |
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| Abstract: | X-Band EPR studies on aqueous solutions of potassium dichromate and gamma-L-glutamyl-L-cysteinylglycine (reduced glutathione) at pH 6-8 have shown the formation of several relatively long-lived chromium(V) species. The major species formed at high glutathione:Cr(VI) ratios is characterised by an EPR band at g = 1.995, but the dominant complex at equimolar ratios produces a signal at g = 1.985. |
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