TABLE 3.
Selected m/z values for ceramide species in MS analysis
| Cera species | Precursor ion (Q1) | Product ion (Q3) | Collision energy (in V) |
|---|---|---|---|
| d18:1/C16:0 Cer | 520.2, 538.2 | 264.2 | 20 |
| d18:1/C16:0 Cer-d7 | 527.2, 545.2 | 271.2 | 20 |
| d18:1/C18:0 Cer | 548.2, 566.2 | 264.2 | 20 |
| d18:1/C18:0 Cer-d7 | 555.2, 573.2 | 271.2 | 20 |
| d18:1/C20:0 Cer | 576.3, 594.3 | 264.2 | 25 |
| d18:1/C20:0 Cer-d7 | 583.3, 601.3 | 271.2 | 25 |
| d18:1/C22:1 Cer | 602.3, 620.3 | 264.2 | 25 |
| d18:1/C22:0 Cer | 604.3, 622.3 | 264.2 | 25 |
| d18:1/C24:1 Cer | 630.3, 648.3 | 264.2 | 30 |
| d18:1/C24:1 Cer-d7 | 637.3, 655.3 | 271.2 | 30 |
| d18:1/C24:0 Cer | 632.3, 650.3 | 264.2 | 30 |
| d18:1/C24:0 Cer-d7 | 639.3, 657.3 | 271.2 | 30 |
| d18:1/C26:0 Cer | 660.4, 678.4 | 264.2 | 30 |
a Cer, ceramide; Cer-d7, deuterium-labeled ceramide.