TABLE 2.
Analysis of the main chemical constituents of KPLD by UHPLC-MS/MS in positive and negative ion modes.
| Identification | Formula | Calculated value | Observed value m/z | Error (ppm) | RT (min) | Peak area | Ion |
|---|---|---|---|---|---|---|---|
| Naringin | C27H32O14 | 580.17921 | 579.1662 | −9.9 | 22.81 | 10,510,839 | −H |
| Nobiletin | C21H22O8 | 402.13147 | 403.1395 | 1.9 | 35.94 | 6,617,944 | +H |
| Naringenin | C15H12O5 | 272.06847 | 273.0767 | 3.5 | 22.8 | 4,006,854 | +H |
| Ordolating-7-o-β-D-glucoside | C22H24O9 | 432.14203 | 433.1497 | 1 | 37.37 | 3,792,067 | +H |
| Calycosin | C16H12O5 | 284.06847 | 285.0768 | 3.6 | 20.06 | 2,337,116 | +H |
| Schisandra B (γ-Schisandrin) | C23H28O6 | 400.18859 | 401.1963 | 1.2 | 42.18 | 2,013,509 | +H |
| Anacardin | C27H30O14 | 578.16356 | 579.171 | 0.3 | 22.89 | 2,006,726 | +H |
| Schisandrin A | C24H32O6 | 416.21989 | 417.2278 | 1.5 | 50.19 | 2,000,546 | +H |
| Formononetin | C16H12O4 | 268.07356 | 269.0818 | 3.7 | 32.74 | 1,779,579 | +H |
| Hesperidin | C28H34O15 | 610.18977 | 611.1968 | −0.4 | 23.92 | 1,656,361 | +H |
| Luteolin-7-O-β-D-Neohesperidin | C27H30O15 | 594.15847 | 595.1661 | 0.7 | 16.93 | 1,645,112 | +H |
| 5-Hydroxylimidin | C20H20O8 | 388.11582 | 389.1239 | 2.1 | 40.45 | 1,547,274 | +H |
| Dendrobium | C15H16O4 | 260.10486 | 261.1133 | 4.4 | 25.05 | 1,481,892 | +H |
| Crotonyl Gomisin P | C28H34O9 | 514.22028 | 515.2282 | 1.3 | 37 | 1,192,735 | +H |
| Isoliquiritin | C21H22O9 | 418.12638 | 419.1344 | 1.8 | 22.81 | 1,171,424 | +H |
| Adenosine | C10H13N5O4 | 267.09675 | 268.1052 | 4.3 | 7.48 | 1,114,902 | +H |
| 5-Ortho-Demethyl Tetraritin | C20H20O8 | 388.11582 | 389.1237 | 1.7 | 32.4 | 1,031,560 | +H |
| Neohesperidin | C28H34O15 | 610.18977 | 611.1963 | −1.3 | 23.3 | 957,588 | +H |
| Benzoyl gomisin H | C30H34O8 | 522.22537 | 523.2303 | −4.5 | 42.18 | 903,290 | +H |
| Aromaticin B | C17H20O6 | 320.12599 | 321.1336 | 1.1 | 1.2 | 852,493 | +H |
| Adenine | C5H5N5 | 135.0545 | 136.0624 | 4.7 | 7.49 | 729,293 | +H |
| Gomisin E | C28H34O9 | 514.22028 | 515.2279 | 0.6 | 35.34 | 661,844 | +H |
| (−)-Gomisin K1 | C23H30O6 | 402.20424 | 403.2123 | 2.1 | 44.64 | 536,213 | +H |
| Gomisin J | C22H28O6 | 388.18859 | 389.1966 | 2 | 38.85 | 510,470 | +H |
| Gomisin G | C30H32O9 | 536.20463 | 537.2097 | −4.1 | 45.67 | 459,576 | +H |
| Bergamot lactone | C12H8O4 | 216.04226 | 217.0503 | 3.6 | 32.19 | 435,691 | +H |
| Gomisin F | C28H34O9 | 514.22028 | 515.2279 | 0.7 | 40.91 | 369,492 | +H |
| Schisandrin A | C24H32O7 | 432.2148 | 433.2222 | 0.4 | 36.93 | 337,193 | +H |
| Quercetin | C15H10O7 | 302.04265 | 303.0511 | 3.9 | 20.74 | 304,959 | +H |
| Kaempferol | C15H10O6 | 286.04774 | 287.056 | 3.6 | 21.26 | 294,732 | +H |
| E-Ligustilide | C12H14O2 | 190.09938 | 191.1073 | 3.5 | 41.25 | 131348 | +H |
| Z-Ligustilide | C12H14O2 | 190.09938 | 191.1074 | 3.7 | 50.88 | 108,024 | +H |
| Vanilla acetone | C9H10O3 | 166.06299 | 167.071 | 4.6 | 34.07 | 105,218 | +H |
| Pinoresinol | C20H22O6 | 358.14164 | 357.1365 | 6.1 | 31.79 | 95,474 | -H |
| Astragalus saponin I | C45H72O16 | 868.48204 | 869.4894 | 0.1 | 38.76 | 83,748 | +H |
| Dendrobin C | C16H18O5 | 290.11542 | 289.1061 | −7.1 | 7.2 | 70,580 | −H |