Research Article

Spectroscopic Investigations of the Oxidative Polymerization of Hydroquinone in the Presence of Hexavalent Chromium

Figure 4

Normalized Cr K-edge XANES spectra for the Cr reference materials of K2Cr2O7, Cr(OH)3·nH2O, Cr-acetate, Cr(NO3)3·9H2O, and Cr(III)-HA.