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Secondary ion mass spectra of oligopeptides
Author(s) -
Kambara Hideki,
Hishida Shinzaburo,
Naganawa Hiroshi
Publication year - 1982
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210170203
Subject(s) - ion , oligopeptide , mass spectrum , secondary ion mass spectrometry , chemistry , mass spectrometry , substrate (aquarium) , molecule , analytical chemistry (journal) , spectral line , static secondary ion mass spectrometry , aluminium , peptide , chromatography , organic chemistry , biochemistry , oceanography , physics , astronomy , geology
Abstract Secondary ion mass spectrometry for oligopeptides, such as tri‐tetra‐, penta‐ and hexapeptides, and bioactive peptides, are presented. Quasimolecular ions and cationized molecules were observed, together with many kinds of fragments, which were helpful in structural assignments. Secondary ion mass spectrometry did not prove to be dependent on temperature. Thermal migration of samples on a surface was observed at high temperature. Secondary ion mass spectra obtained with a silver substrate and an aluminium substrate are compared.