title: Laser desorption/Fourier transform mass spectrometry of steroids.
abstract: Mass spectra of six representative underivatized steroids and three parent hydrocarbons were obtained using laser desorption/Fourier transform (LD/FT) mass spectrometry. The carbonyl steroids, with the exception of aldosterone, yielded abundant [M + H]+ ions. For cholesterol, a major fragment ion was that corresponding to dehydration. The hydrocarbons produced [M + H]+, M+ and [M - H]+ ions, in addition to expected alkyl cleavage ions including those resulting from methyl loss. The LD/FT mass spectra of all were qualitatively similar to electron ionization spectra, but showed somewhat less fragmentation.
authors.affiliation: Department of Chemistry, University of California, Riverside 92521.
authors.forename: E T
authors.initials: ET
authors.lastname: Fung
authors.forename: C L
authors.initials: CL
authors.lastname: Wilkins
mesh_terms: D005583:Fourier Analysis; D007834:Lasers; D013058:Mass Spectrometry; D013256:Steroids / Q000032:analysis*
chemical_list: D013256:Steroids