Table 2.
Putative lipid assignments of ion signal peaks measured by liquid AP-MALDI MS.
| Ion Bin(m/z) | Peak m/z Values (Monoisotopic) | Theoretical m/z Values (Monoisotopic) | Putative Lipid Assignment |
|---|---|---|---|
| 523.5 | 523.47 | 523.48 | [Cer(d32:3) + NH4]+ |
| 675.5 | 675.51 | 675.53 | [SM(D16:1/16:0) + H]+ |
| 703.5 | 703.57 | 703.57 | [SM(34:1;O2) + H]+ |
| 706.5 | 706.55 | 706.54 | [PC(30:0) + H]+ |
| 734.5 | 734.57 | 734.57 | [PE(34:4) + Na]+ |
| 787.5 | 787.63 | 787.63 | [SM(40:1;O2) + H]+ |
| 788.5 | 788.62 | 788.62 | [PC(36:1) + H]+ |
| 800.5 | 801.68 | 801.67 | [SM(d41:1) + H]+ |
| 815.5 | 815.69 | 815.70 | [SM(42:1)+ H]+ |
Cer, ceramide; SM, sphingomyelin; PC, phosphatidylcholine; PE, phosphatidylethanolamine; PI, phosphatidylinositol.