TABLE 1.
Characterization and identification of compounds in TFLS.
| No. | Name | Molecular formula | Adduction | tR/min | m/z | |||
|---|---|---|---|---|---|---|---|---|
| Positive | Negative | Positive | Negative | |||||
| 1 | Unknown | C11H18N3O | — | 3.39 | — | 208.1438→149.0697, 131.0596, 103.0641 | — | |
| 2 | 2,5-Dihydroxybenzoic acid | C7H6O4 | — | [2M−H]- | — | 3.733 | — | 307.0475→153.0208, 109.0298 |
| 3 | 3-O-p-Coumaroylquinic acid | C16H18O8 | [M+H]+ | [2M−H]- | 4.307 | 4.32 | 339.1146→321.0978, 293.0988, 147.0546 | 675.1933→337.0941, 191.0568, 173.0466, 163.0411 |
| 4 | Epicatechin | C15H14O6 | [M+H]+ | [M−H]- | 4.88 | 4.92 | 291.0964→273.0862, 139.0494, 123.0542 | 289.0717→245.0764,179.0349,137.0243,125.0253,109.0304 |
| 5 | Rutin | C27H30O16 | [M+H]+ | [M−H]- | 5.317 | 5.300 | 611.1637→465.1053, 303.0589 | 609.1454→301.0344 |
| 6 | Proanthocyanidin A1 | C30H24O12 | [M+H]+ | [M−H]- | 5.440 | 5.439 | 577.1346→559.1263, 425.0929, 287.0648 | 575.1179→557.1047, 423.0716, 271.0624, 137.0239, 125.0239 |
| 7 | Proanthocyanidin A2 | C30H24O12 | [M+H]+ | [M−H]- | 5.716 | 5.725 | 577.1343→425.0920, 287.0649 | 575.1193→423.0721, 285.0404, 271.0617, 137.0248, 125.0248 |
| 8 | Litchioside C | C19H34O9 | [M+Na]+ | [M−H]- | 5.996 | 6.013 | 429.2141→407.2322, 245.1842, 241.1525, 227.1741 | 405.2130→243.1562, 239.1295, 225.1505 |
| 9 | Berberine | C20H18NO4 | [M]+ | — | 7.189 | — | 336.1302→321.1073, 320.0993, 292.1054 | — |
| 10 | (-)-Pinocembrin7-O-Neohesperidoside | C27H32O13 | [M+H]+ | [M−H]- | 7.300 | 7.317 | 565.2033→257.0913, 239.0899, 153.0294, 105.0805, 103.0621, 101.0676 | 563.1774→255.0670 |