Figure 6

CPMASTOSS spectra of the solid fractions of E.grandis x urophylla barks samples submitted to the different pretreatments. (a) hot water; (b) sodium bisulfite; (c) sulfuric acid and (d) sodium hydroxide pretreatments, respectively.
CPMASTOSS spectra of the solid fractions of E.grandis x urophylla barks samples submitted to the different pretreatments. (a) hot water; (b) sodium bisulfite; (c) sulfuric acid and (d) sodium hydroxide pretreatments, respectively.