title: The application of low voltge mass spectrometry to the determination of extent and location of deuterium substitution in dethiobiotin.
abstract: The fragmentation mechanism of dethiobiotin and its derivatives has been studied. A new fragmentation favoured at low energy allows the localization of deuterium on the carbons 2, 3, 4 and 5 in a sample of monodeuterated dethiobiotin.
mesh_terms: D001710:Biotin / Q000031:analogs & derivatives* / Q000032:analysis; D003903:Deuterium; D004583:Electrons; D013058:Mass Spectrometry / Q000379:methods
chemical_list: D001710:Biotin; C004749:desthiobiotin; D003903:Deuterium