Table 8.
Retention time (TR) of individual polyphenols and their major ions observed in the MS/MS spectra.
| No. | TR (min) | [M–H]− | MS/MS | Formula | Compounds |
|---|---|---|---|---|---|
| 1 | 3.7 | 353.0880 | 191.0552/179.0340 | C16H18O9 | 4-Caffeoylquinic acid |
| 2 | 7.9 | 609.1464 | 300.0276 | C27H30O16 | Rutin |
| 3 | 9.1 | 505.0993 | 300.0276 | C23H22O13 | Quercetin-acetyl-glycoside |
| 4 | 9.2 | 593.1516 | 285.0405 | C27H30O15 | Kaempferol-3-O-rutinoside |
| 5 | 7.7 | 431.0984 | 311.0563/341.0666 | C21H20O10 | Vitexin |
| 6 | 8.2 | 463.0887 | 300.0276 | C21H20O12 | Isoquercitrin |
| 7 | 9.5 | 447.0936 | 284.0327/255.0300 | C21H20O11 | Astragalin |
| 8 | 10.8 | 533.1724 | 285.0404 | C24H22O14 | Kaempferol-malonyl-glycoside |