TABLE 2.
Main components of IR identified by UPLC-QTOF-MS.
| No | tR (min) | Measured (m/z) | Error (ppm) | Formula | Fragment ions (m/z) | Identification |
|---|---|---|---|---|---|---|
| 1 | 2.83 | 372 | 1.5 | C17H24O9 | 353.1294, 193.1090, 163.0585, 161.0795 | Syringin |
| 2 | 3.27 | 370 | 3.6 | C17H22O9 | 209.1069, 177.0772 | Sinapaldehyde glucoside |
| 3 | 4.41 | 426 | 2.9 | C20H26O10 | 325.1310, 163.0585 | Caffeic acid (1-hydroxyl-4-O-β-D-glucopyranosylprenyl)-ester |
| 4 | 4.65 | 580 | 1.2 | C28H36O13 | 573.2634, 402.2126, 401.2088, 383.1967, 330.1488 | (-)-Syringaresinol-4-O-beta-D-glucopyranoside |
| 5 | 4.72 | 640 | 3.2 | C29H36O16 | 581.2554, 559.2475, 479.2119, 443.1870, 277.1040, 263.1234, 163.0601 | Kelampayoside B |
| 6 | 4.81 | 426 | 5.1 | C20H26O10 | 247.1272 | 4-caffeoyl-3-methyl-but-2-ene-1,4-diol 1-O-β-D-glucopyranoside |
| 7 | 5.11 | 604 | −2.6 | C35H56O8 | 340.2998, 279.2770 | 3β-[(α-L-arabinopyanosyl) oxy]-19α-hydroxyolean-12-en-28-oic acid |
| 8 | 5.33 | 604 | −1.3 | C35H56O8 | 425.1754, 397.3508, 396.8493, 263.1234, 163.0585 | Ziyuglycoside II |
| 9 | 5.41 | 678 | −4.1 | C37H58O11 | 500.1883, 499.1853, 445.2390 | 19α,23-dihydroxyurs-12-en-28-oic acid |
| 10 | 5.94 | 812 | 5.1 | C42H68O15 | 703.4561, 673.4752, 645.0314, 623.0475, 487.3038, 429.2686, 241.1711 | Ilexoside XLI |
| 11 | 6.57 | 810 | 2.5 | C42H66O15 | 805.5347, 671.4646, 455.4050, 437.3941, 435.3761 | Ilexoside XLVIII |
| 12 | 6.78 | 664 | 4.8 | C36H56O11 | 503.3972, 485.3865, 439.3741, 279.1262 | Ilexasprellanoside D |
| 13 | 6.90 | 780 | 3.2 | C42H68O13 | 671.4613, 641.4467, 451.3751, 398.2888, 376.3059, 282.2395 | 3-O-β-D-glucopyranosyl-oleanolic acid 28-O-β-D-glucopyranoside |
| 14 | 7.12 | 650 | 0.6 | C36H58O10 | 471.4030, 453.3918, 435.3788, 407.3809 | pedunculoside |
| 15 | 7.48 | 928 | 2.0 | C47H76O18 | 789.5362, 657.4775, 560.3391, 487.2982, 455.4077, 437.3941 | Ilexoside K |
| 16 | 7.92 | 766 | 3.9 | C41H66O13 | 657.4775, 456.4119, 455.4077, 437.3941 | Ziyuglycoside I |
| 17 | 8.19 | 650 | 1.5 | C36H58O10 | 471.4030, 453.3918, 435.3788 | Ilexoside V |
| 18 | 8.60 | 664 | 0.9 | C36H56O11 | 503.3972, 485.3865, 467.3714, 457.3873, 439.3741, 421.36 | Ilexsaponin A1 |
| 19 | 9.38 | 488 | 2.3 | C30H48O5 | 471.4057, 454.3965, 453.3918, 436.3818, 435.3788,288.3236 | Rutundic acid |
| 20 | 9.82 | 810 | 1.8 | C42H66O15 | 671.4613, 655.4648, 455.4104, 437.3941, 327.1188, 299.1984, 277.2140 | Ilekudinoside B |
| 21 | 10.40 | 794 | 1.8 | C42H66O14 | 655.4615, 641.4821, 440.4138, 439.4114, 431.2565, 191.2025 | Scheffleside L |
| 22 | 10.75 | 488 | 2.5 | C30H48O5 | 471.4057, 453.3918, 436.3818, 435.3788, 407.3809 | Rotungenic acid |
| 23 | 11.12 | 502 | 1.7 | C30H46O6 | 485.3865, 467.3741, 439.3741, 421.3627 | Ilexgenin A |