Table 1.
Flavonoids identified by liquid chromatography–mass spectrometry/ mass spectrometry (LC-MS/MS) in flavonoids from ZJF.
| Peak No. | Compounds | tR (min) | λmax (nm) | [M−H]− (m/z) | Collision Energy (eV) | MS/MS (m/z) |
|---|---|---|---|---|---|---|
| 1 | Quercetin-3-O-robinobioside | 17.63 | 252/353 | 608.9 | −45 | 300.2 |
| 2 | Quercetin-3-O-rutinoside | 18.58 | 253/353 | 608.9 | −45 | 300.0 |
| 3 | Unidentified | 19.35 | 247/355 | 671.5 | −40 | 581.4/509.2 |
| 4 | Quercetin-3-O-galactoside | 20.25 | 253/353 | 463.3 | −34 | 300.1 |
| 5 | Quercetin 3-O-glucoside | 21.27 | 253/353 | 463.3 | −34 | 300.0 |
| 6 | Kaempferol-3-O-robinobioside | 22.41 | 260/350 | 593.4 | −43 | 284.0 |
| 7 | Kaempferol-3-O-rutinoside | 25.50 | 258/350 | 593.2 | −43 | 285.0 |
| 8 | Unidentified | 26.86 | 252/352 | 623.3 | −46 | 315.1 |
| 9 | Quercetin-3-O-arabino-rhamnoside | 27.96 | 252/350 | 579.5 | −41 | 300.0 |
| 10 | Quercetin-3-O-rhamnoside | 28.78 | 252/350 | 447.4 | −32 | 300.1 |
| 11 | Quercetin-3-O-xyloso-rhamnoside | 29.67 | 255/350 | 579.5 | −41 | 300.1 |