LPC: monoglycerophosphocholines; LPE: monoglycerophosphoethanolamines; PE: glycerophosphoethanolamine; PC: glycerophosphocholine; SM: Sphingomylin; DG: Diradylglycerol TG: Triradylglycerol; CE: Cholesteryl ester.

Figure 1: (a) Base peak chromatogram of 20 µl of human plasma in positive ionization mode; (b) density map (m/z vs. retention time); (c) averaged mass spectra of three different time regions.