Fig. 7From: Synergistic contribution of hydrosulfide and carbonate anions to the β-O-4 bond cleavage of lignin model compounds in a green liquor pretreatment for enzymatic hydrolysis of lignocellulosic materialsHPLC chromatograms of solutions 1, 5, and 6 after subjecting to the reaction for 120 min at 160 °CBack to article page