Figure 2
From: An integral method for determining the molecular composition of lignin and its application

Molecular composition of the parent lignin and the fractions under different molecular intervals: WL, SWL, and ISWL under (a) 2, (c) 3, and (e) 8 intervals; ML, SML, and ISML under (b) 2, (d) 3, and (f) 8 intervals.