Table 2.
Identified phospholipid species with choline head group in krill oil
| Class | Mass | m/z a | Molecular specie | Relative intensity |
|---|---|---|---|---|
| PtdCho | 703.6 | 748.6 | 14:0–16:1 | 5.33 |
| PtdCho | 717.7 | 762.7 | 15:0–16:1 | 0.90 |
| PtdCho | 717.7 | 762.7 | 13:0–18:1 | 21.08 |
| PtdCho | 731.6 | 776.6 | 14:0–18:1 | 13.75 |
| PtdCho | 731.6 | 776.6 | 16:0–16:1 | 27.48 |
| PtdCho | 737.6 | 782.6 | 13:0–20:5 | 17.38 |
| PtdCho | 745.6 | 790.6 | 15:0–18:1 | 6.71 |
| PtdCho | 745.6 | 790.6 | 16:0–17:1 | 6.80 |
| PtdCho | 749.6 | 794.6 | 14:1–20:5 | 6.94 |
| PtdCho | 751.6 | 796.6 | 14:0–20:5 | 17.62 |
| PtdCho | 753.6 | 798.6 | 14:0–20:4 | 0.26 |
| PtdCho | 753.6 | 798.6 | 16:0–18:4 | 14.88 |
| PtdCho | 755.6 | 800.6 | 16:0–18:3 | 13.30 |
| PtdCho | 757.6 | 802.7 | 16:1–18:1 | 1.41 |
| PtdCho | 757.6 | 802.7 | 16:0–18:2 | 32.42 |
| PtdCho | 759.7 | 804.7 | 16:1–18:0 | 0.10 |
| PtdCho | 759.7 | 804.7 | 16:0–18:1 | 100.00 |
| PtdCho | 761.7 | 806.7 | 16:0–18:0 | 15.83 |
| PtdCho | 763.6 | 808.6 | 13:0–22:6 | 0.30 |
| PtdCho | 763.6 | 808.6 | O16:1–20:5 | 20.17 |
| PtdCho | 765.6 | 810.7 | O16:0–20:5 | 28.24 |
| PtdCho | 777.6 | 822.6 | 18:3–18:3 | <0.01 |
| PtdCho | 777.6 | 822.6 | 12:4–24:2 | 0.03 |
| PtdCho | 777.6 | 822.6 | 18:1–18:5 | 0.07 |
| PtdCho | 777.6 | 822.6 | 16:1–20:5 | 4.85 |
| PtdCho | 777.6 | 822.6 | 14:0–22:6 | 12.25 |
| PtdCho | 779.6 | 824.6 | 18:1–18:4 | 0.10 |
| PtdCho | 779.6 | 824.6 | 16:0–20:5 | 96.57 |
| PtdCho | 781.6 | 826.6 | 16:0–20:4 | 24.23 |
| PtdCho | 783.7 | 828.7 | 18:1–18:2 | 7.69 |
| PtdCho | 785.6 | 830.7 | 18:1–18:1 | 14.69 |
| PtdCho | 789.6 | 834.7 | O16:1–22:6 | 3.50 |
| PtdCho | 789.6 | 834.7 | 17:2–20:5 | 3.85 |
| PtdCho | 791.7 | 836.7 | 17:1–20:5 | 15.64 |
| PtdCho | 791.7 | 836.7 | O16:0–22:6 | 22.97 |
| PtdCho | 793.6 | 838.6 | O18:0–20:5 | 15.01 |
| PtdCho | 799.6 | 844.6 | 18:4–20:5 | 8.17 |
| PtdCho | 803.6 | 848.7 | 18:2–20:5 | 9.28 |
| PtdCho | 805.6 | 850.6 | 18:1–20:5 | 3.51 |
| PtdCho | 805.6 | 850.6 | 16:0–22:6 | 76.34 |
| PtdCho | 807.6 | 852.6 | 18:0–20:5 | 23.92 |
| PtdCho | 825.6 | 870.6 | 18:4–22:6 | 0.15 |
| PtdCho | 825.6 | 870.6 | 20:5–20:5 | 30.31 |
| PtdCho | 827.6 | 872.6 | 20:4–20:5 | 16.18 |
| PtdCho | 831.7 | 876.7 | 18:1–22:6 | 17.10 |
| PtdCho | 833.7 | 878.7 | 20:1–22:6 | <0.01 |
| PtdCho | 851.6 | 896.6 | 20:5–22:6 | 24.80 |
| PtdCho | 861.7 | 906.7 | 20:5–22:1 | 20.80 |
| PtdCho | 867.6 | 912.7 | 20:5–23:5 | <0.01 |
| PtdCho | 875.7 | 920.7 | 20:5–23:1 | 5.75 |
| PtdCho | 877.6 | 922.6 | 22:6–22:6 | 7.49 |
Data were obtained with RPLC/ESI-MS3 operated in negative ionization mode and with data dependent fragmentation without exclusion list
a m/z for [M + FA–H]− adduct