Effect Study of Continuous Monoculture on the Quality of Salvia miltiorrhiza Bge Roots

Figure 4

The HPLC chromatogram of lipophilic components in samples from different treatment groups. The peaks are 5 (dihydrotanshinone I), 6 (cryptotanshinone), 7 (tanshinone I), and 8 (tanshinone IIA).