Figure 5: Experimental O K-edge XAS spectra (open circle) and their fitting curves (black line).
From: Insights into the sonochemical synthesis and properties of salt-free intrinsic plutonium colloids

(a) sonochemical and (b) hydrolytic Pu colloids. The individual Gaussian and arctangent contributions to the model are shown as red, blue and grey lines respectively. Spectra were obtained after 2 months of sampling.