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目的：研究重瓣铁线莲中主要化学成分，为进一步研究提供基础。方法：本文采用系统化学预实验，通过各成分的特征反应，对重瓣铁线莲茎部的冷热水、95％乙醇、酸水乙醇、石油醚的提取液进行研究，初步推断重瓣铁线莲茎部主要化学成分。结果：重瓣铁线莲可能含有氨基酸、蛋白质、还原糖、糖类、皂苷类、生物碱、黄酮类以及少量的酚类和鞣质、有机酸、内酯、香豆素、挥发油、甾体和萜类等化学成分。结论：初步推断重瓣铁线莲茎部含有多种有效成分，为重瓣铁线莲的进一步开发利用提供了实验基础。“,”Objective:To study the main chemical components of Clematis florida Thunb. var. plena D.Don, provide a basis for further research. Method:This paper use the the system of chemical pre-experiment,by the reaction result to research the hot and cold water 95% ethanol、acidic water ethanol、 petroleum ether extract of the stem of Clematis florida Thunb. var. plena D.Don ,to concluded main chemical components.Result: Clematis florida Thunb. var. plena D.Don might have Amino acids, proteins, sugar, carbohydrates, saponins, alkaloids, flavonoids and smal amounts of phenols and tannins, organic acids, lactones, coumarin, volatile oil, steroids and terpenoids .Conclusion:The stems contain a variety of active ingredients, it provide an experimental basis for the further development and utilization.