Figure 3
(a) Comparison between uranium L3-edge XANES spectra of uranyl ions in HClO4 (solid line) and AO (broken line) solutions. The bottom curves show the first derivative of XANES in two uranyl ion solutions. (b) Comparison between the uranium L3-edge EXAFS oscillation pattern of uranyl ions in HClO4 and AO solutions after subtracting the double-electron excitations. |