red cedar wood oil

用法例句

In this article,a method is developed to determine the terpene components in the essential oil of cedarwood, with HP-5MS crossed silicon capillary column,and the temperature program:120 ℃2 ℃/min 200 ℃.

采用毛细管气相色谱法 (CGC)分析了柏木精油中萜烯成分 ,色谱条件 :HP - 5MS( 3 0m× 0 。

The major components of cedar wood oil including some isomers α-cedrene, β-cedrene, thujopsene and so on,were separated by GC/MS and 19 compounds were identified.

本文利用GC／MS技术，对柏木油中的主要产物α—柏木烯、β—柏木烯、罗汉柏烯等同分异构体进行分离定性，共定出19个组份。

32g cedrol extracted from cedar wood oil,176ml dried dimethyl benzene and 7g aminosodium,the reactants were refluxed for 2h at 115～125℃.

由柏木油中提取的柏木醇３２ｇ、１７６ｍｌ二甲苯、氨基钠７ｇ，在１１５～１２５℃下回流２ｈ，冷却，慢慢滴加３２ｇ硫酸二乙酯，在１１５～１２５℃回流１ｈ，分馏，在１１３～１１４℃／０。