Fig. 6
a Non-linear least-squares fit of normalized k3-weighted EXAFS spectra of Cr(VI) reacted magnetite after 48Â h. A vertical dotted line is aligned at the peak of first shell of a bottom spectrum. b Corresponding Fourier transformed radial structural function (uncorrected for phase shift of backscattering atom) of EXAFS spectra. Solid lines and filled black circles represent normalized raw data and fit, respectively