目的 :对解热抗炎Ⅰ号口服液中厚朴的有效成分厚朴酚进行定性、定量分析 ,建立质控方法。方法 :用薄层层析法对有效成分厚朴酚进行定性分析 ,以高效液相色谱法在ODS -C18柱上以甲醇 -水 (70 30 )为流动相测定其含量。结果 :厚朴酚的回收率为 98 15% (RSD =2 .96 % ) ,检测范围为 0 0 184～ 0 184 μg/ml ,r =0 9996。可以作为该制剂的质控方法。结论 :所用定性、定量方法快速、可靠、灵敏 Objective :To qualitatively and quantitatively analyze honokiol, the effective ingredient of Jiefang Anti-inflammatory No.1 oral liquid Magnolia officinalis, and establish a quality control method. Methods : The qualitative analysis of magnolol was carried out by thin layer chromatography. The content of magnolol was determined by high performance liquid chromatography on methanol-water (7030) mobile phase on ODS-C18 column. Results: The recovery rate of honokiol was 98 15% (RSD = 2.96%). The detection range was 0 0 184 to 0 184 μg/ml, r = 9996. It can be used as a quality control method for this preparation. Conclusion : The qualitative and quantitative methods used are fast, reliable and sensitive