Caption: 
Detail of Fig. 4.44 showing pre-edge features of the Fe K XAS spectra of the  $\Phi=0.67$ CIPs in comparison to reference humboldtine, all recorded in transmission mode.

Notes: 
None

Plot data:
plot_0: CIPs, $\Phi=0.67$
plot_1: humboldtine
plot_2: CIPs, $\Phi=0.67$ (without $\mathrm{HNO_3}$)
plot_3: CIPs, $\Phi=0.67$ (with $\mathrm{HNO_3}$)

