title: Oligopeptide fragmentation viewed as constant neutral loss.
abstract: Spectra were recorded of all fragment ions formed by elimination of 28-u neutral fragments in fast atom bombardment spectra of peptides in the mass range 1000-1800 u, This approach can provide less complex spectra than either conventionally scanned spectra or product ion scans from collisionaIly activated four-sector experiments, and spectra that contain information that is both overlapping and complementary to those from the other techniques. Constant neutral loss spectra may provide a reading frame for distinguishing sequence ion series in tandem or single analyzer spectra.
authors.affiliation: Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 21228, Baltimore, MD.
authors.forename: C
authors.initials: C
authors.lastname: Fenselau
authors.forename: C M
authors.initials: CM
authors.lastname: Murphy
authors.forename: R J
authors.initials: RJ
authors.lastname: Cotter