Comparison of the fitting results of the two methods, the NASA Ames PAH IR Spectroscopic Database (Bauschlicher et al. 2010) (top) and BSS (bottom). The left panel depicts an observed spectra which is fit with both the database and the BSS extracted spectra. The middle and right panels are the cation (middle) and neutral (right) components obtained from the respective methods. The signals are normalized to the 11.2 μm peak.