Table 1.

Negative ion mode peak identity of m/z s of interest from the mass spectra

m/z	Peak Identity
281.5	FA (18:1), oleic acid
283.5	FA (18:0), stearic acid
303.5	FA (20:4), arachidonic acid
563.5	FA (18:1), oleic acid dimer
724.5	PS (32:5), phosphatidylserine 32:5
757.5	PG (35:4)/SM (38:1), phosphatidylglycerol 35.4 or sphingomyelin 38:1
773.5	PG (18:1), phosphatidylglycerol 18:1
786.4	PS (18:1), phosphatidylserine 18:1
788.6	PS (18:0/18:1), phosphatidylserine 18:0 or phosphatidylserine 18:1
810.5	PS (38:4), phosphatidylserine 38:4
835.7	PI (16:0/18:1), phosphatidylinositol 16:0 or phosphatidylinositol 18:1
861.7	PI (36:2), phosphatidylinositol 36:2
863.7	PI (36:1), phosphatidylinositol 36:1
885.6	PI (38:4), phosphatidylinositol 38:4