Phosphatidylethanolamine (PE) is a membrane phospholipid and the types depend on the combination of free fatty acids on the α and β position. 18:0-18:2 Phosphatidylethanolamine (PE) is suitable for use · in the preparation of monolayers · in the preparation of glucose-PE and lactose-PE as standards in multiple reaction monitoring (MRM) and mass spectrometry (MS/MS) analysis · as standards for mass spectrometry-electrospray ionization (MS-ESI) Phosphatidylethanolamine (PE) is a membrane phospholipid and the types depend on the combination of free fatty acids on the α and β position. 18:0-18:2 Phosphatidylethanolamine (PE) is suitable for use · in the preparation of monolayers · in the preparation of glucose-PE and lactose-PE as standards in multiple reaction monitoring (MRM) and mass spectrometry (MS/MS) analysis · as standards for mass spectrometry-electrospray ionization (MS-ESI)