Methods: Melicope pteleifolia, flex asprella, Forsythia suspensa, Radix isatis, Isatis indigotica in Yuekang Waigan Bagged Tea was identified by TLC.

• 方法：采用薄层色谱法鉴别悦康外感凉茶中的三叉苦、岗梅、连翘、大青叶、板蓝根。