采用固相微萃取技术提取了唐古拉特白刺和西伯利亚白刺茎挥发性成分,用气相色谱-质谱联用结合保留指数法鉴定了其成分。分别从唐古拉特白刺茎和西伯利亚白刺茎的挥发油中,鉴定出43和36个化合物,二者共有成分24个。对比了二者的挥发性成分,发现挥发性成分具有高度相似性,其中,十五烷在二者茎中质量分数达10%以上。 Volatile components from white seeds of Tanguraratus and Siberian white were extracted by solid-phase microextraction. Their components were identified by gas chromatography-mass spectrometry combined with retention index. 43 and 36 compounds were identified from the essential oils of Tangurarat and Thuja siberianus, respectively, with a total of 24 constituents. The volatile components of the two components were compared and the volatile components were found to be highly similar. Among them, the mass fraction of pentadecane in both stems was more than 10%.