本文主要介绍杜鹃花科植物所含有的查尔酮类化合物及有毒成分的薄层层析法:马醉木素(Asebotin)及根皮甙(Phlorizin)的薄层层析作者为了研究马醉木素存在是否恒定,按前人方法以5公斤为单位检查各地采集的马醉木叶。结果有的地方分得马醉木素,有的地方含根皮甙,它们的含量仅0.1～0.2%。 This paper mainly introduces the TLC analysis of chalcone compounds and toxic components contained in the rhododendron plants: thin layer chromatography of Asebotin and Phlorizin. In order to study whether the presence of horse drinkers is constant , According to the previous method to check the collection of 5 kg of horse drunk leaves around. In some places, the result was horse drunk lignin, and in some places phlorizin, their content was only 0.1 to 0.2%.