894841.fig.008
Figure 8: CRDS-based CO quantification: (a) typical signal from the CALOS setup. (b) Derived absorption coefficients fitted by a Voigt profile (full line) representing the CO-P(25) line at 1994.7 cm−1. (c) Residuals from the fitted line in (b). (d) Linear regression of the determined line areas versus the experimental parameter .