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测得精制碱木质素和活化后碱木质素M_n、M_w、M_z,结果表明,活化碱木质素的多分散性小于精制碱木质素的多分散性。