Table 5.
List of Target Ions/MRM Transitions, Assignment to Internal Standard, and Mode of Analysis
| Name | Internal Standard | Mode | Target Ion Q1>Q3 |
|---|---|---|---|
| C15:0 Cer | APCI | 524.4>264.3 | |
| C16:0 Cer | >C15:0 Cer< | APCI | 538.7>264.4 |
| d17:1 Sph | ESI | 289.4>268.3 | |
| d18:1 Sph | >d17:1 Sph< | ESI | 300.5>282.3 |
| C17:0 SM (18:0) | ESI | 717.483>184.1 | |
| C12:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 647.7>184.1 |
| C14:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 675.7>184.1 |
| C16:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 703.8>184.1 |
| C18:1 SM (18:1) | >C17:0 SM (18:0)< | ESI | 729.8>184.1 |
| C18:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 731.8>184.1 |
| C20:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 759.9>184.1 |
| C22:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 797.9>184.1 |
| C24:1 SM (18:1) | >C17:0 SM (18:0)< | ESI | 813.9>184.1 |
| C24:0 SM (18:1) | >C17:0 SM (18:0)< | ESI | 815.9>184.1 |
| 28:0 PC | >34:0 PC< | ESI | 678.5>184.1 |
| 30:0 PC | >34:0 PC< | ESI | 706.55>184.1 |
| 30:1 PC | >34:0 PC< | ESI | 704.5>184.1 |
| 32:0 PC | >34:0 PC< | ESI | 734.55>184.1 |
| 32:1 PC | >34:0 PC< | ESI | 732.55>184.1 |
| 34:0 PC | ESI | 762.455>184.1 | |
| 34:1 PC | >34:0 PC< | ESI | 760.6>184.1 |
| 34:2 PC | >34:0 PC< | ESI | 758.629>184.1 |
| 36:0 PC | >34:0 PC< | ESI | 790.65>184.1 |
| 36:1 PC | >34:0 PC< | ESI | 788.6>184.1 |
| 36:2 PC | >34:0 PC< | ESI | 786.6>184.1 |
| 36:3 PC | >34:0 PC< | ESI | 784.6>184.1 |
| 36:4 PC | >34:0 PC< | ESI | 782.55>184.1 |
| 38:1 PC | >34:0 PC< | ESI | 816.65>184.1 |
| 38:2 PC | >34:0 PC< | ESI | 814.65>184.1 |
| 38:3 PC | >34:0 PC< | ESI | 812.6>184.1 |
| 38:4 PC | >34:0 PC< | ESI | 810.6>184.1 |
| 16:0 LPC | >17:0 LPC< | ESI | 496.278>184.1 |
| 16:1 LPC | >17:0 LPC< | ESI | 494.3>184.1 |
| 17:0 LPC | ESI | 510.222>184.1 | |
| 18:0 LPC | >17:0 LPC< | ESI | 524.35>184.1 |
| 18:1 LPC | >17:0 LPC< | ESI | 522.35>184.1 |
| 18:2 LPC | >17:0 LPC< | ESI | 520.35>184.1 |
| 20:1 LPC | >17:0 LPC< | ESI | 550.4>184.1 |
| 20:3 LPC | >17:0 LPC< | ESI | 546.35>184.1 |
| 20:4 LPC | >17:0 LPC< | ESI | 544.35>184.1 |
| 16:0 LPE | >17:1 LPE< | ESI | 454.3>313.25 |
| 17:1 LPE | ESI | 466.3>325.3 | |
| 18:0 LPE | >17:1 LPE< | ESI | 482.3>341.3 |
| 18:1 LPE | >17:1 LPE< | ESI | 480.3>339.3 |
| 18:2 LPE | >17:1 LPE< | ESI | 478.3>337.25 |
| 20:4 LPE | >17:1 LPE< | ESI | 502.3>361.25 |
| LysoPAF | >17:0 LPC< | ESI | 482.3>104.20 |
Abbreviations: APCI, atmospheric pressure chemical ionization; Cer, ceramide; ESI, electrospray ionization; SM, sphingomyeline; Sph, sphingosine; LPC, lysophosphatidylcholine; LPE, lysophosphatidylethanolamine; PC, phosphatidylcholine.
For Cer, SM, and lyso-compounds, the number of carbon atoms is given and also the number of unsaturated bonds; for SM, the sphingoid backbone is given in brackets; and for PC, the total number of carbon atoms as well as of unsaturated bonds are given.