Fig. 3From: Effects of common groundwater ions on chromate removal by magnetite: importance of chromate adsorption a Pre-edge features of bulk XANES spectra of reference salt mixtures (K2Cr(VI)O4 and Cr2(III)O3) b The intensity of Cr(VI) pre-edge height of reference spectra in Fig. 3a as a function of Cr(VI)/Total Cr (%)Back to article page