title: Gas chromatography-mass spectrometry of the N(O)-heptafluorobutyryl isobutyl esters of the protein amino acids using electron impact ionisation.
abstract: The N(O)-heptafluorobutyryl isobutyl esters of the protein amino acids have been analysed by combined gas chromatography-mass spectrometry using electron impact ionisation. The spectral data have been used to confirm the structures of the amino acid derivatives.
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002849:Chromatography, Gas / Q000379:methods; D013058:Mass Spectrometry / Q000379:methods
chemical_list: D000596:Amino Acids