Figure 4
(a) Comparison of experimental L3-edge XANES spectra collected from uranyl ions in HClO4 and solution samples with different HNO3 concentrations, as well as the UO2(NO3)2(H2O)2 solid powder. The zoomed inset shows the continuum MS resonance regions. (b)–(e) The experimental L3-edge XANES spectra and their pseudo-Voigt line shapes determined by least-squares fitting of linear combination analyses for uranyl ions in different solutions. |