title: Ammonia chemical ionization mass spectrometry of intact diacyl phosphatidylcholine.
abstract: Mass spectra have been obtained on molecular species of intact diacyl phosphatidylcholine by means of ammonia gas-induced chemical ionization. MH(+) ions were observed with all species, and other prominent ions in the spectra identified the fatty acid composition. Spectra of phosphatidylcholine containing deuterated methyl groups and spectra obtained using [(15)N]ammonia have allowed identification of fragments containing choline methyl groups and ammonium adducts.-Crawford, C. G., and R. D. Plattner. Ammonia chemical ionization mass spectrometry of intact diacyl phosphatidylcholine.
mesh_terms: D000641:Ammonia; D055598:Chemical Phenomena; D002621:Chemistry; D013058:Mass Spectrometry / Q000379:methods; D010713:Phosphatidylcholines / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D000641:Ammonia