Using a triple-quadrupole mass spectrometer in accurate mass mode and an ion correlation program to identify compounds

Atomic masses and isotopic abundances are independent and complementary properties for discriminating among ion compositions. The number of possible ion compositions is greatly reduced by accurately measuring exact masses of monoisotopic ions and the relative isotopic abundances (RIAs) of the ions g...

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Bibliographic Details
Published in:Rapid communications in mass spectrometry 2005-01, Vol.19 (18), p.2699-2715
Main Authors: Grange, Andrew H., Winnik, Witold, Ferguson, Patrick L., Sovocool, G. Wayne
Format: Article
Language:English
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Summary:Atomic masses and isotopic abundances are independent and complementary properties for discriminating among ion compositions. The number of possible ion compositions is greatly reduced by accurately measuring exact masses of monoisotopic ions and the relative isotopic abundances (RIAs) of the ions greater in mass by +1 Da and +2 Da. When both properties are measured, a mass error limit of 6–10 mDa (
ISSN:0951-4198
1097-0231
DOI:10.1002/rcm.2112