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Table 1 Summary of polarity and scan modes for lipid classes using ESI-MS/MSALL

From: Dynamic and temporal assessment of human dried blood spot MS/MSALL shotgun lipidomics analysis

Lipid Classa Polarity Molecular Ion MS/MS Scan Mode
PC positive M + H Precursor ion of 184.1
PE positive M + H Neutral loss of 141.0
SM positive M + H Precursor ion of 184.1
TAG positive M + NH4 Neutral loss of FAb
DAG positive M + NH4 Neutral loss of FA
Cer positive M + H Precursor ion of 264.2
AC positive M + H Precursor ion of 85.0
Glycolipid positive M + H Precursor ion of 264.2
PA negative M-H Precursor ion of FA
PS negative M-H Precursor ion of FA
PI negative M-H Precursor ion of FA
PG negative M-H Precursor ion of FA
  1. a PC phosphatidylcholine, PE phosphatidylethanolamine, PS phosphatidylserine, SM sphingomyelin, PI phosphatidylinositol, PG phosphatidylglycerol, PA phosphatidic acid, TAG triacylglyceride, DAG diacylglyceride, Cer ceramide, AC acylcarnitines, b FA fatty acid