Radix Rehmanniae, Cacumen Platycladi, Folium Artemisiae Argyi, Folium Nelumbinis were identified by TLC, and the content of quercitrin was determined by HPLC.

采用薄层色谱法鉴别地黄、侧、、,高效液相色谱法测定槲皮苷的含量。