Table 2.
Accurate mass measurements of the compounds in MGHQ, MJHQ, and HQ as revealed by UPLC/TOF-MS analysis in negative mode.
| Peak no. | tR (min) | Selected ion | m/z | Compound identification |
|---|---|---|---|---|
| 1 | 4.33 | [M + HCOOH − H]− | 491.1221 | calycosin-7-O-β-D-glucoside |
| 2 | 6.66 | [M + HCOOH − H]− | 475.1225 | ononin |
| 3 | 6.75 | [M + HCOOH − H]− | 625.2927 | naringin |
| 4 | 7.19 | [M + HCOOH − H]− | 507.1475 | (6aR, 11aR)-9,10-dimethoxypterocarpan-3-O-β-D-glucopyranoside |
| 5 | 7.86 | [M − H]− | 463.1603 | (3R)-2′-hydroxy-3′, 4′-dimethoxyisoflavan-7-O-β-D-glucopyranoside |
| 6 | 8.93 | [M − H]− | 283.061 | calycosin |
| 7 | 10.46 | [M + HCOOH − H]− | 957.5071 | soyasaponin II |
| 8 | 11.69 | [M + HCOOH − H]− | 829.462 | astragaloside IV |
| 9 | 12.16 | [M − H]− | 267.0686 | formononetin |
| 10 | 12.47 | [M + HCOOH − H]− | 871.4798 | astragaloside II |
| 11 | 12.70 | [M + HCOOH − H]− | 667.4065 | astramembrannin II |
| 12 | 13.09 | [M + HCOOH − H]− | 871.4722 | isoastragaloside II |
| 13 | 14.28 | [M + HCOOH − H]− | 913.4913 | astragaloside I |
| 14 | 14.37 | [M − H]− | 941.5078 | soyasaponin I |
| 15 | 14.60 | [M + HCOOH − H]− | 913.4836 | isoastragaloside I |
| 16 | 16.05 | [M + HCOOH − H]− | 955.4894 | acetylastragaloside I |
| 17 | 16.28 | [M + HCOOH − H]− | 315.2524 | medicarpin |