Table 1.
Light induced ochratoxin A degradation products detected by high performance liquid chromatography-fluorescence detection-fourier transform mass spectrometry (HPLC-FLD-FTMS).
| Retention time [min] | Detected m/z (ionization polarity) | Calculated sum formula of the ion | Calculated m/z | Deviation [ppm] | Difference to Ochratoxin A |
|---|---|---|---|---|---|
| 10.45 | 256.0371 (positive) | (C11H10O4NCl+H)+ | 256.0371 | −0.1 | –C9H8O2 |
| 13.32 | 282.0173 (negative) | (C12H10O5NCl−H)- | 282.0175 | −0.5 | –C8H8O |
| 20.48 | 360.0995 (positive) | (C19H18O4NCl+H)+ | 360.0997 | −0.7 | –CO2 |
| 20.70 | 358.0839 (positive) | (C19H16O4NCl+H)+ | 358.0846 | −0.5 | –CH2O2 |