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Effect of pH on the charge state of high‐mass molecular ions
Author(s) -
Schronk Leonard R.,
Cotter Robert J.
Publication year - 1986
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200130803
Subject(s) - ion , fast atom bombardment , mass spectrum , charge (physics) , molecule , chemistry , desorption , charged particle , mass spectrometry , atomic physics , spectral line , atom (system on chip) , highly charged ion , analytical chemistry (journal) , physics , ion source , adsorption , chromatography , organic chemistry , quantum mechanics , astronomy , computer science , embedded system
For molecules over 5000u, abundances of multiply‐charged molecular ions in the fast atom bombardment mass spectra reflect changes in the pH of the sample. This result follows from the production of stable multiply‐charged ions with desorption rates comparable to that of singly‐charged ions.