目的比较白术不同炮制品的白术内酯的含量。方法利用HPLC法,对白术不同炮制品的白术内酯Ⅰ、Ⅱ、Ⅲ的含量进行测定和比较。结果白术不同炮制品中白术片、麸炒白术、土炒白术的白术内酯的含量差异不大,而漂白术的含量有较大幅度的升高。结论说明漂白术炮制方法的合理性。 Objective To compare the contents of atractylenolide in different processed products of Atractylodes macrocephala. Methods The content of atractylenolide Ⅰ, Ⅱ and Ⅲ in different processed products of Atractylodes macrocephala was determined and compared by HPLC method. Results Atractylodes macrocephala, Atractylodes macrocephalae, Atractylodes macrocephala and Atractylodes macrocephala were not significantly different in the contents of Atractylodes macrocephalae and Atractylodes macrocephalae, while the contents of bleaching were increased significantly. Conclusions illustrate the rationality of the bleaching process.