当归为伞形科植物当归Ａｎｇｌｉｃａｓｉｎｅｎｓｉｓ (ｏｌｉｖ.)Ｄｉｅｌｓ的干燥根 ,多年生草本植物 ,为著名常用中药材 ,主产于甘肃省 ,一般认为甘肃岷县为当归道地产区[1] ,其有效成分包括挥发油。文献报道挥发油含量为 0 .4%。本文利用水蒸气蒸馏提取获得挥发油 ,气相色 Angelica is a dry root of the umbrella plant Angelica sinensis (oliv.) Diels, a perennial herb that is commonly used as a traditional Chinese medicinal material and is produced mainly in Gansu Province. It is generally considered that Ganxian County of Gansu Province is the real estate area of ​​Angelica Road [1] , and its active ingredient Includes volatile oil. The literature reported that the volatile oil content was 0.4%. This article uses steam distillation to obtain volatile oil