title: Relatively long-lived chromium(V) species are produced by the action of glutathione on carcinogenic chromium(VI).
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.
mesh_terms: D002273:Carcinogens / Q000032:analysis*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D002840:Chromates / Q000032:analysis*; D002857:Chromium / Q000032:analysis*; D004578:Electron Spin Resonance Spectroscopy; D005978:Glutathione / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D011192:Potassium Dichromate / Q000032:analysis*
chemical_list: D002273:Carcinogens; D002840:Chromates; D002857:Chromium; D005978:Glutathione; D011192:Potassium Dichromate