[Studies on chemical constituents of the essential oil from Angelica formosana].

Essential oil from Angelica formosana Boiss was obtained by steam distillation. The chemical components of the oil were examined by means of capillary gas chromatography and gas chromatography-mass spectrometry. 23 of the 62 separated constituents were identified. The content of each component identified was determined by area normalization method. Of these, the content of 11 compounds was higher than 1%.