Oligopeptide fragmentation viewed as constant neutral loss |
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| Authors: | C Fenselau C M Murphy R J Cotter |
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| Institution: | 1. Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 21228, Baltimore, MD
2. Department of Pharmacology and Molecular Sciences, Johns Hopkins University, Baltimore, Maryland, USA
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| 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. |
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