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

采用薄层谱法地黄、侧柏叶、叶、荷叶,高效谱法测定槲皮苷的含量。