Table 3.
Retention time (Rt) and UV-VIS absorbance of standards and peaks in the samples analyzed by HPLC.
| Compound | Molecular formula |
tR (min) | Maximum Absorbance (UV/VIS) |
|---|---|---|---|
| Chlorogenic acid | C16H18O9 | 9.096 | 214/324 |
| (±)-Hesperetin | C16H14O6 | 18.884 | 220/286 |
| trans-Sinapic acid | C11H12O5 | 12.015 | 222/321 |
| Quercetin | C15H10O7 | 16.573 | 218/369 |
| Kaempferol | C15H10O6 | 19.210 | 224/365 |
| Peak 1 | Unidentified | 1.749 | 222/258 |
| Peak 2 | Unidentified | 5.605 | 222/282 |
| Peak 3 | Unidentified | 7.456 | 222/236 |
| Peak 4 | Unidentified | 7.968 | 222/236 |
| Peak 5 | Unidentified | 8.896 | 222/236/323 |
| Peak 6 | Unidentified | 9.824 | 222/237 |
| Peak 7 | Unidentified | 10.058 | 222/237 |
| Peak 8 | Unidentified | 10.442 | 222/237 |
| Peak 9 | Unidentified | 11.051 | 222/237 |
| Peak 10 | Unidentified | 11.626 | 222/237 |
| Peak 11 | Unidentified | 12.501 | 222/237 |
| Peak 12 | Unidentified | 12.853 | 222/237 |
| Peak 13 | Unidentified | 13.291 | 222/237 |
| Peak 14 | Unidentified | 14.101 | 222/237 |
| Peak 15 | Unidentified | 14.698 | 222/237 |
| Peak 16 | Unidentified | 16.309 | 222/237 |
| Peak 17 | Unidentified | 17.824 | 222/237 |