用高效液相色谱法在同一测定条件下，经一次测定同时对九分散中麻黄碱（ephedrine）和士的宁（strychnine）进行定量；并对样品提取方法进行了考察。为九分散的质量控制提供了一个简便、可靠的方法。

A rapid, simple and sensitive method was establised for the evaluatiou of Chinese traditional medicine "Joufenaan" by HPLC. Sample of "Joufensan" was extracted by solvent, and the extraction analysed by HPLC using an inertsil ODS column with a solvent system, acetonitrile-water-phospboric acid-sodium dodecyl sulfate(38:62:0.1:0.5) at 40℃ and UV detector. The new method was reliable for the evaluation of ephedrine aud strychnine in "Joufensan".