Table 1.
MS/MS detection parameters of 20 compounds in S. miltiorrhiza.
| Compounds | tR (min) | MW | MRM Transitions/SIM | Cone Voltage (V) | Collision Energy (eV) | Ion Mode |
|---|---|---|---|---|---|---|
| 1. Danshensu | 2.50 | 198.05 | 199.085 > 153.028 | 10 | 6 | ES+ |
| 2. Protocatechuic aldehyde | 3.36 | 138.12 | 138.833 > 65.075 | 16 | 20 | ES+ |
| 3. Caffeic acid | 3.89 | 180.04 | 181.030 > 88.890 | 12 | 26 | ES+ |
| 4. Rutin | 4.79 | 610.51 | 611.287 > 303.095 | 14 | 22 | ES+ |
| 5. Isoquercitrin | 4.96 | 464.38 | 465.233 > 303.104 | 32 | 22 | ES+ |
| 6. Astragalin | 5.36 | 448.00 | 449.223 > 287.104 | 30 | 22 | ES+ |
| 7. Rosmarinic acid | 5.72 | 360.31 | 359.223 > 197.055 | 30 | 16 | ES− |
| 8. Lithospermic acid | 5.77 | 538.46 | 537.287 > 295.161 | 36 | 18 | ES− |
| 9. Salvianolic acid B | 6.00 | 718.62 | 717.287 > 519.166 | 26 | 18 | ES− |
| 10. Salvianolic acid A | 6.37 | 494.12 | 493.16 > 295.09 | 28 | 18 | ES− |
| 11. Tanshinone IIB | 8.60 | 310.00 | 311.223 > 293.44 | 22 | 12 | ES+ |
| 12.Dihydrotanshinone I | 9.22 | 278.30 | 279.224 > 189.917 | 28 | 34 | ES+ |
| 13. Cryptotanshinone | 9.71 | 296.35 | 297.16 > 251.119 | 36 | 26 | ES+ |
| 14. Neocryptotanshione | 9.75 | 314.38 | 314.968 > 294.306 | 86 | 6 | ES+ |
| 15. Tanshinone I | 10.20 | 276.29 | 277.224 > 249.147 | 30 | 20 | ES+ |
| 16.Tanshinone IIA | 10.20 | 294.34 | 295.16 > 190.875 | 32 | 44 | ES+ |
| 17. Miltiradiene | 10.20 | 272.47 | 295.287 > 277.235 | 28 | 20 | ES+ |
| 18. Miltirone | 10.32 | 282.38 | 283.287 > 265.269 | 30 | 18 | ES+ |
| 19. Oleanolic acid | 10.80 | 456.71 | 457.479 > 411.409 | 12 | 16 | ES+ |
| 20. Ursolic acid | 10.82 | 456.68 | 457.479 > 95.056 | 14 | 30 | ES+ |