Fig. 12
From: Hydrating softwood and hardwood samples using pure and modified supercritical carbon dioxide
OH/˝Cellulose˝ peak areas (around 3460 and 4020 cm−1 respectively) in DRIFT spectra obtained for Maple, White Oak, Zebrano and Red Oak having undergone the five different treatments: oven-dried (blue), 2.5 mol% MeOH (red), 5.0 mol% MeOH (green), 10.0 mol% MeOH (magenta) and soaked (orange). Each bar represents the overall mean from calculated ratio areas ± one standard error of the mean