摘要
通过Mannich反应 ,木质素被有机胺类化合物改性 ,用醋纤薄膜电泳测定了木质素的改性率 ,它与改性后的木质素胺的含氮量存在线性关系 ,相关系数r =0 .990 2 ,根据F检验 ,当α =0 0 0 1时 ,线性关系显著 。
Lignin was modified with amines through Mannich reaction. The modification ratio of lignin was determined by use of acetate fiber membrane electrophoresis, which was linear with the nitrogen content of lignin amine, with correlation coefficient r = 0.9902. According to the F test, the linear relation was noticeable when α = 0.001. Experimental result proved it feasible to utilize electrophoresis to determine the modification ratio, and this method was introduced.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2001年第4期196-197,200,共3页
Fine Chemicals
基金
贵州省科学基金资助项目 [黔基合计字! (1993 ) 3 0 3 7]
关键词
木质素
改性率
薄膜电泳
氮含量
线性关系
lignin
modification ratio
membrane electrophoresis
nitrogen content
linear relation
