GC-MS Determination of Chemical Components in Volatile Essential Oil of Heteropappus Altaicus Novopokr

Volatile essential oil of heteropappus altaicus novopokr was extracted from the sample by steam distillation,and chemical components in the extract were separated and identified by GC-MS.Fifty chemical components were found in the separation,among which 39 compounds were identified and their relative contents were determined by the method of normalization,amounting to 84.7% of the total.