Research Article
Preliminary Studies on Liquiritin, Deoxyschizandrin, and Tanshinone II A as Potential Anti-Neurodegenerative Disease Agent: Determination by Reverse-Phase Liquid Chromatography in Tianwang Buxin Pills
Figure 1
HPLC chromatogram of the mixed standard solution of liquiritin (1), deoxyschizandrin (2), tanshinone II A (3), and internal standard berberine (4).