摘要
对麦草亚硫酸盐—甲醛—蒽醌制浆废液的基本性能及组成,如pH值、色度及灰分、木质素磺酸盐、糖和精酸含量及组成等进行了分析研究,并对其高灰分的原因进行了分析。在用GC—MS、HPLC和FAB—MS对其半纤维素的组成进行分析研究时发现,该半纤维素的主要组成是木糖和阿拉伯糖等中性单糖及一对酸解极为稳定、分子量为380的精酸类物质,并用NMR对该精酸类物质和官能团进行了分析。
The composition and characteristics of the Na2SO3 - HCHO - AQ pulping effluent ofstraw were analyzed. The main cmponent of hemicellulose in the effluent is one kind of oligosac-charic acid,which molecular weight is 380 and is stable to acid hydrolysis.NMR was enployed toanalyze the drichonal groups in the structure although the exact chemical structure has not com-pletely been known.
出处
《纤维素科学与技术》
CAS
CSCD
1998年第4期28-34,共7页
Journal of Cellulose Science and Technology