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. Author manuscript; available in PMC: 2007 Oct 29.
Published in final edited form as: J Biol Chem. 2006 May 27;281(30):20958–20973. doi: 10.1074/jbc.M600075200

FIGURE 6. Tandem mass spectra of glycerophosphocholine lipids from mouse brain and islets.

FIGURE 6

GPC lipid-Li+ adducts from wild-type or iPLA2β-null mouse brain extracts were analyzed by positive ion ESI/MS/MS. Specific ions were selected in the first mass-analyzing quadrupole and accelerated into the collision cell to induce CAD. Product ions were analyzed in the final quadrupole. Ions selected in the first quadrupole included m/z 788 (A), 816 (B), 766 (C ), and 794 (D).