气相色谱-质谱法分析表明，挥发性成份主要含40种化合物，对其中32种成分进行了鉴定，占整个挥发性成分含量的91.48％。
The analysis demonstrated that 40 main components were revealed with GC-MS and 32 of which were identified, up to 91.48 percent.
将茶叶泡在热水中，所需要的可溶性成份便从茶叶中萃取出来，其中某些成份还是挥发性的。
Desired soluble constituents, some of which are volatile, are extracted from tea leaves by steeping the leaves in hot water.
结果表明，该方法重现性好，操作简便，是分析烤烟中挥发性和半挥发性碱、中性成份的一种可行方法。
The results showed that the method was simplicity and the repeatability was evaluated. It was suitable for analysis of the volatile, semi-volatile neutral and basic components in flue-cured tobacco.
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