Fig. 2
From: A rapid thioacidolysis method for biomass lignin composition and tricin analysis
A representative GC–MS chromatogram of TMS derivatives of bagasse thioacidolysis products prepared by the modified method. a A total ion chromatogram. The double peaks of G and S represent the erythro and threo isomers of guaiacyl and syringyl units released by thioacidolysis. b Selected ion chromatograms for m/z 343 (IS), 239 (H monomer), 269 (G monomer), and 299 (S monomer). IS: Internal standard; H: p-hydroxyphenyl monomer; G: Guaiacyl monomer; S: Syringyl monomer