refined alkali lignin

HPGPC was applied to measure M_n, M_w and M_z of the refined alkali lignin and activated alkali lignin, indicating that the polydispersity of activated alkali lignin was less than the refined alkali lignin.
用HPGPC測得精制堿木質素和活化後堿木質素M_n、M_w、M_z,結果表明,活化堿木質素的多分散性小於精制堿木質素的多分散性。