Figure 12. Electrospray ionization tandem mass spectrometric analyses of diradyl glycerophosphocholine lipids from pancreatic islets of wild-type and RIP-iPLA2β transgenic mice.
Phospholipids from pancreatic islets of wild-type (Panel A) and RIP-iPLA2β transgenic (Panel B) mice were mixed with internal standard 14:0/14:0-GPC and analyzed as Li+ adducts by positive ion ESI/MS/MS scanning for constant neutral loss of 183 (phosphocholine), and relative abundances of ion currents were plotted vs. m/z value.