Result Gastrodia elata, Uncaria rhynchopylla (Miq) Jacks, cyathula officinalis Kuan, Scutellaria baicalensis Georgi, Apoeynum venetum L canbe distinguished respectively by TLC.

• 结果利用薄层色谱鉴别可检测出其中天麻、钩藤、牛膝、黄芩、罗布麻。