Figure 7.

Chromatogram comparing the fingerprints analyzed by chromatographic condition II (HPLC-PDA) with negative control samples and reference standard samples: (a) S1–S8 were respectively the negative sample without Cervi Cornu Pantotrichum, without Fritillariae Thunbergii Bulbus, without Hirudo, without Ginseng Radix et Rhizoma, without Curcumae Rhizoma, without Sparganii Rhizoma, without Astragali Radix, and without Epimedii Folium, in which peaks 5 and 8 were from Astragali Radix; peaks 12 and 14 were from Epimedii Folium; and peak 20 was from Fritillariae Thunbergii Bulbus by comparing with the negative control solutions (S1–S8); (b) S2 and S1 were respectively the fingerprints of the reference standard solution and sample solution, in which peaks 8, 12, and 14(S) were identified as ononin, epimedin B, and icariin (reference peak) by comparing with the reference standard substance.