樟脑型樟叶油成分分析

Abstract

本文针对实验室用挥发油提取器提取樟脑型樟叶油出现的析脑现象，采用真空抽滤进行初步分离，利用GC-MS联用仪和GC对获得的晶体及脱脑油进行了定性和定量分析。实验结果表明，真空抽滤是纯化樟脑型樟叶油的方法之一，得到的樟脑含量为94.671%；脱脑油中单萜类和倍半单萜类物质分别占88.597%，10.554%，含量大于2%的主要成分为樟脑(50.864%)，D-苧烯(12.490%)，α-蒎烯(3.458%)，β-月桂烯(4.199%)，4-松油醇(2.260%)，α-松油醇(3.915%)，石竹烯(3.973%)，葎草烯(3.036%)等，可通过分馏对其加以利用。 The camphor crystals separate out when the essential oil is extracted with volatile oil extractor from the camphor tree leaves of camphor type. In view of this phenomenon, the camphor crystals and the oil layer were separated preliminarily by vacuum filtration and their chemical composi-tions were analyzed qualitatively and quantitatively by GC-MS and GC. The results showed that the vacuum filtration was one of the ways for purifying the camphor oil of camphor type. After the es-sential oil was separated, the content of camphor reached to 94.671%. In the oil layer, the content of single terpenoids and half the terpenoids substances is 88.597% and 10.554% respectively, and the contents of camphor (50.864%), D-limonene (12.490%), alpha pinene (3.458%), beta myrcene (4.199%), 4-terpineol (2.260%), alpha terpineol (3.915%), caryophyllene (3.973%) and humulene (3.036%) are more than 2%. These main chemical compositions can be used by fractionation.