柴胡含挥发油,被公认为柴胡注射液的有效成分。挥发油含量的多少直接影响到柴胡注射液的临床效果。本文利用挥发油成分在276±1nm波长处有吸收峰,以吸收值作为测定其含量的基准,对同一批柴胡因保管贮藏不善造成虫蛀与未虫蛀的样品的挥发性成分作了初步实验比较,证明柴胡虫蛀后挥发性成分明显降低。 Bupleurum contains volatile oil and is recognized as an effective component of Bupleurum injection. The amount of volatile oil directly affects the clinical effect of Bupleurum injection. In this paper, the absorption peaks of the volatile oil component at 276±1 nm were used. The absorption value was used as the basis for the determination of the content. A preliminary experiment was conducted on the volatile components of the same batch of Bupleurum var. By comparison, it was shown that the volatile components of Chai worms were significantly reduced.