The composition of essential oil of annual wormwood Artemisia annua L. in flora Buryatia

The chemical composition of essential oil of annual wormwood Artemisia annua L. growing in the Republic of Buryatia has been researched by use of the method of gas chromatography-mass spectrometry. In the essential oil 43 components have been identified. There are 11 constant compounds (found in all samples) in the composition of essential oil, including artemisia ketone (10.2-25.8%o), caryophyllene (4.7-10.7%o), β-selinene (20.6-29.4%o), caryophyllene oxide (4.4-14.3%o), germacren D (3.5-7.8%o).