Table 1.
m/z [M − H]− ion, MSn fragments of the compounds obtained by FIA-ESI-IT-MS/MS of the AERM.
| m/z [M − H]− | MS² | MS³ | Proposed Name |
|---|---|---|---|
| 289 | 137 [M-152-H]− | catechin | |
| 435 | 283 [M-152-H]− | 137 [M-152-146-H]− | catechin + deoxyhexose |
| 451 | 299 [M-152-H]− | 137 [M-152-162-H]− | catechin + hexose |
| 515 | 353 [M-162-H]− | 191 [M-162-162-H]− | dicaffeoyl-quinic acid |
| 577 | 451 [M-126-H]− | catechin dimer | |
| 425 [M-152-H]− | |||
| 289 [M-288-H]− | |||
| 609 | 463 [M-146-H]− | rutin | |
| 301 [M-308-H]− | |||
| 723 | 571 [M-152-H]− | 419 [M-152-H]− | catechin dimer + deoxyhexose |
| 739 | 587 [M-152-H]− | 569 [M-18-H]− | catechin dimer + hexose |
| 435 [M-152-H]− | |||
| 865 | 577 [M-288-H]− | 451 [M-126-H]− | catechin trimer |
| 425 [M-152-H]− | |||
| 289 [M-288-H]− | |||
| 1153 | 865 [M-288-H]− | 847 [M-18-H]− | catechin tetramer |
| 739 [M-126-H]− | |||
| 587 [M-278-H]− | |||
| 577 [M-288-H]− | |||
| 451 [M-414-H]− |