尾巨桉木材苯/醇提取物成分的气相色谱/质谱分析

采用混合溶剂萃取法从新鲜尾巨桉木材中提取低分子量成分,并用气相色谱/质谱法联机分析技术,用色谱峰面积归一化法计算各组分的相对含量。共分离出42个峰,并从中鉴定出30个化合物,占总峰面积的87.88%。主要成分为1,2-邻苯二甲酸二异辛酯(17.53%)、1,2-邻苯二甲酸双(2-甲丙基)酯(cas)(8.48%)、二丁基酞酸盐(8.12%)、丁二酸-甲基-双(1-甲丙基)酯(7.02%)、乙二酸双(2-甲丙基)酯(cas)(6.89%)、2,6,10,15,19,23-六甲基-鲨烯(4.53%)、十六酸乙酯(cas)(3.77%)、2-异丙基-1-甲烷基萘(2.97%)、二十六烷(2.63%)、己二酸双(2-乙己基)酯(1.98%)、二十八烷(1.93%)、鹿尾草碱(1.90%)等。

Determination of Chemical Components of Benzene/Ethanol Extractives of Eucalyptus urograndis Wood by GC/MS

The chemical components of benzene/ethanol extractives of fresh Eucalyptus urograndis wood chips were separated and identified by GC/ MS after enriching. Relative content of each chemical component was determined by area normalization. Thirty compounds representing 87.88% of the extractives which take on 42 peaks were identified. The most abundant and valuable constituents were 1,2-benzenedicarboxylic acid, diisooctyl ester (17.53%), 1,2- benzenedicarboxylic acid, bis (2- methylpropyl) ester (8.48%), dibutyl phthalate (8.12%), butanedioic acid, methyl-,bis (1-methylpropyl) ester (7.02%), hexanedioic acid, bis(2-methylpropyl) ester (6.89%), 2,6,10,15,19,23-hexamethyl-2,6,10,14,18,22- tetracosahexaene(4.53%), hexadecanoic acid,ethyl ester (3.77%), 2-isopropyl-1-methylnaphthalene(2.97%), hexacosane (2.63%), di(2-ethylhexyl)adipate(1.98%), octacosane(1.93%), salsoline(1.90%) and so on.