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 2

HPLC chromatograms of eight batches of TWBXP samples: (a) 17052802; (b) 17052803; (c) 17070507; (d) 17091903; (e) 17102402; (f) 17015269; (g) 17055293; (h) 18015225. Peak 1, liquiritin; peak 2, deoxyschizandrin; peak 3, tanshinone II A; peak 4, berberine (IS).

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)