Figure 3

HPLC chromatograms. (A) HPLC chromatogram of 90% ethanol extract of raw materials extract. (B) HPLC chromatogram of 90% eluent sample (TTS). (C) DAC chromatogram of TTS. (D) HPLC chromatograms of pure tanshinones prepared by the semi-preparative HPLC-DAC system. a. DTAN, b. TANI, c. CTAN, d. TANA.