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. 1988 Jan 15;15(2):75-7.
doi: 10.1002/bms.1200150204.

Linked scan investigation of peptide degradation initiated by liquid secondary ion mass spectrometry

D Renner  1 , G Spiteller
Affiliations

Linked scan investigation of peptide degradation initiated by liquid secondary ion mass spectrometry

D Renner et al. Biomed Environ Mass Spectrom. .

Abstract

[MH]+ ions of peptides are degraded in one step to acyl ions, indicating the presence of different [MH]+ species. In contrast to protons, cations are added mainly at the carboxylate function of a peptide zwitterion. These species are degraded by loss of the C-terminal amino acid in the form of CO and an imine.

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