满山红,即杜鹃花科植物“兴安杜鹃”(Rhodo-dendron dauricum L.),其叶供药用,经药理试验与临床观察,证明杜鹃素(farrerol)是满山红治疗气管炎祛痰主要成分之一。本文对满山红叶中杜鹃素的提取、分离鉴定及含量测定方法进行了研究,确定分析方法为:样品干粉2.0g.用20.0 ml 乙醚冷浸4～5小时,精密吸取滤液10.0 ml,蒸干,残渣以甲醇溶解并定容,用含抗氧剂亚硫酸氢钠(10%w/w)的硅胶薄层,氯 Manshan red, Rhododendron dauricum L., is used for medicinal purposes. It has been proved through pharmacological experiments and clinical observations that farrerol is Manzan red in the treatment of bronchitis. One of the main ingredients. In this paper, the extraction, isolation, identification and content determination of rhododendron from the leaves of Manzanaceae were studied. The analytical method was determined as follows: sample dry powder 2.0g. Cold immersed in 20.0 ml ether for 4 to 5 hours. Precisely sucked the filtrate 10.0 ml, evaporated to dryness. The residue is dissolved in methanol and brought to volume with a thin layer of silica gel containing the antioxidant sodium bisulfite (10% w/w), chlorine