TABLE 1.
HPLC-Q-TOFMS analysis of the main flavonoid monomer components of HKC and TFA.
| No | ID | t R /min | Molecular | Ion mode | Observed m/z | Calculated m/z | Error | MS/MS (m/z) |
|---|---|---|---|---|---|---|---|---|
| 1 | quercetin | 10.5 | C15H10O7 | [M-H]- | 301.0347 | 301.0354 | −2.3 | 301.0361; 273.0405; 178.9990; 151.0042; 121.0291; 107.0133 |
| 2 | myricetin | 9.67 | C15H10O8 | [M-H]- | 317.0295 | 317.0303 | −2.5 | 317.0293; 271.0243; 199.0425; 178.9963; 167.0022; 151.0019; 139.0049; 111.0094 |
| 3 | hyperoside | 8.54 | C21H20O12 | [M-H]- | 463.0856 | 463.0882 | −5.6 | 463.0893; 301.0377; 271.0242; 255.0297; 243.0311; 151.0034 |
| 4 | isoquercitrin | 8.68 | C21H20O12 | [M-H]- | 463.0855 | 463.0882 | −5.8 | 463.0893; 301.0377; 271.0242; 255.0297; 243.0311; 151.0034 |
| 5 | quercetin-3′-glucoside | 9.3 | C21H20O12 | [M-H]- | 463.0862 | 463.0882 | −4.3 | 463.0994; 301.0394; 271.0289; 178.9999; 151.0034 |
| 6 | hibifolin | 9.2 | C21H18O14 | [M-H]- | 493.0616 | 493.0624 | −1.6 | 493.0585; 317.0307; 299.0199; 194.9936; 166.9986; 139.0036 |
| 7 | rutin | 8.54 | C27H30O16 | [M-H]- | 609.1464 | 609.1461 | 0.5 | 609.1443; 301.0345; 271.0259; 255.0326; 178.9999; 151.0039 |