Table 3.
Major nonvolatile components identified by HPLC coupled to both DAD and MS detectors in the C. sativa ethanolic extract.
| Peak | Rt (min) | λ max (nm) | (M–H)− | Major MS/MS product ions | Identification |
|---|---|---|---|---|---|
| 1 | 6.83 | 300 | 1153 | 1001 (60), 983 (100) | Nd |
| 2 | 8.46 | 295 | Nd | Nd | Nd |
| 3 | 14.15 | 280 | nd | Nd | Nd |
| 4 | 16.48 | 266 | 443 | 375 (95), 335 (100), 219 (96) | Nd |
| 5 | 35.61 | 350 | 447 | 357 (58), 327 (100) | Luteolin C-glucoside |
| 6 | 36.36 | 350 | 593 | 473 (100), 357 (58), 327 (54) | Luteolin C-rhamnoglucoside |
| 7 | 40.53 | 336 | 577 | 413 (100) | Apigenin C-rhamnoglucoside |
| 8 | 43.60 | 350 | 607 | 443 (100), 341 (42) | Methoxy luteolin C-rhamnoglucoside |
| 9 | 44.23 | 347 | 461 | 341 (100) | Methoxy luteolin C-glucoside |