Through infraed spectrum and liquid-phase chromatoram, a comparative analysis of the alkaloid extracted from the rhizome and the folium of Cynanchum komarrovii AI Iljinski is carried out.

• 用红外光谱法和液相色谱法相互验证的方法,对从老瓜头根茎和枝叶中所提取出的生物碱组分进行了对比分析,发现两部分所含生物碱的组成基本相同。