Table 3.
Comparisons of the masses and intensity ratios of the detected ion forms with those of the reference standards by via full-scan and MS2 high-resolution mass spectrometry to confirm the identities of the AFs.
| AFB1 | AFB2 | AFG1 | AFG2 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
c Ref. (m/z) |
d Mass dev. (ppm) |
e Ratio dev. (%) |
c Ref. (m/z) |
d Mass dev. (ppm) |
e Ratio dev. (%) |
c Ref. (m/z) |
d Mass dev. (ppm) |
e Ratio dev. (%) |
c Ref. (m/z) |
d Mass dev. (ppm) |
e Ratio dev. (%) |
|
| a Full scan | 313.0699 | 1.25 | 0 | 315.0849 | 0.99 | 0 | 329.0646 | 1.43 | 0 | 331.0811 | 1.17 | 0 |
| 335.0504 | 1.56 | 0 | 337.0669 | 1.18 | 0 | 351.0464 | 1.26 | 0 | 353.0631 | 1.66 | 0 | |
| 647.1142 | 2.02 | 0 | - | - | - | 679.1039 | 2.54 | 0 | - | - | - | |
| b MS2 | 285.0750 | 1.99 | 5 | 287.0907 | 1.37 | 1 | 311.0543 | 2.57 | 1 | 313.0719 | 2.03 | 0 |
| 270.0515 | 1.04 | 3 | 259.0593 | 1.18 | 2 | 283.0594 | 1.79 | 3 | 285.0751 | 1.98 | 1 | |
| 243.0645 | 2.30 | 1 | - | - | - | 243.0646 | 2.01 | 4 | 245.0804 | 2.13 | 1 | |
a The full-scan m/z values are consistent with the molecular ion adducts including [M + H]+, [M + Na]+ and [2M + Na]+. b The presented product ions originated from the fragmentation of the protonated molecular ions. c The m/z values of the reference standards. d Mass deviation of the purified compounds from the corresponding ion reference standards determined with the high-resolution mass spectrometer. e Differences between the ratios of the formed ion intensities measured in the reference standards and the purified components.