Table 3.
Identified lyso-phospholipid and phospholipid species with choline head group in krill oil
| Class | Mass | m/z a | Molecular specie |
|---|---|---|---|
| Lyso-PtdCho | 549.4 | 594.4 | 20:1 |
| Lyso-PtdCho | 569.4 | 614.4 | 22:5 |
| PtdCho | 771.3 | 816.3 | O18:1–18:1 |
| PtdCho | 795.6 | 840.6 | 16:0–21:4 |
| PtdCho | 819.7 | 864.7 | O18:0–22:6 |
| PtdCho | 829.5 | 874.5 | 18:2–22:6 |
| PtdCho | 845.6 | 890.6 | 20:5–21:2 |
| PtdCho | 853.2 | 898.2 | 22:6–23:5 |
| PtdCho | 853.2 | 898.2 | 20:5–22:5 |
| PtdCho | 893.6 | 938.6 | 20:4–22:6 |
| PtdCho | 911.6 | 956.6 | 20:5–26:4 |
Data were obtained with RPLC/ESI-MS3 operated in negative ionization mode and with data dependent fragmentation with asymmetric exclusion list. Relative intensities for the two different methods cannot be compared
a m/z for [M + FA–H]− adduct