Contents of magnolol and honokiol in 76 samples of Magnolia officinalis collected from 11 counties in Zhejiang, Fujian, Sichuan, Guangxi, Hunan, Jiangxi and Hubei are analyzed by means of HPLC.

• 浙、闽、川、湘、桂、赣、鄂7省11县76个不同树龄厚朴样本,采用高效液相色谱(HPLC)测定厚朴酚类含量,以研究树龄对厚朴有效成分的影响。