Table 2.
The list of various components analyzed in ALM16.
| No. | Components | RT (min) | Molecular formula | Expected neutral mass (Da) | Observed neutral mass (Da) | Observed m/z | Mass error (ppm) | Relative quantification (mg/g) |
|---|---|---|---|---|---|---|---|---|
| 1 | Calycosin-7-O-β-D-glucoside | 2.45 | C22H22O10 | 446.1213 | 446.1211 | 491.1193 | −0.4 | 0.5 |
| 2 | Lithospermic acid | 3.21 | C27H22O12 | 538.1113 | 538.1101 | 537.1029 | −1.8 | 0.3 |
| 3 | Ononin | 3.6 | C22H22O9 | 430.1263 | 430.1259 | 475.1241 | −1.1 | 0.35 |
| 4 | Salvianolic acid A | 3.7 | C26H22O10 | 494.1213 | 494.1209 | 439.1136 | −0.8 | 2.112 |
| 5 | Calycosin | 3.99 | C16H12O5 | 284.0684 | 284.0678 | 283.0605 | −2.5 | 0.479 |
| 6 | Astragaloside IV | 5.45 | C41H68O14 | 784.4609 | 784.4617 | 829.4599 | 1 | 0.487 |
| 7 | Formononetin | 5.58 | C16H12O4 | 268.0735 | 268.0732 | 267.066 | −1.2 | 0.659 |
| 8 | Astragaloside III | 5.6 | C41H68O14 | 784.4609 | 784.4619 | 829.4601 | 1.3 | 0.891 |
| 9 | Astragaloside II | 6.3 | C43H70O15 | 826.4714 | 826.4723 | 871.4705 | 1 | 1.404 |
| 10 | Astragaloside I | 8.08 | C45H72O16 | 868.482 | 868.483 | 913.4814 | 1.2 | 1.411 |