ISSN:
1052-9306
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The positive ion fast atom bombardment mass spectra of dipeptides all exhibit the MH+ ion as the most abundant one. Direct identification of the N-terminal amino acid in the mass spectrum is not possible because of the absence of its acylium ion. Fortunately the identification of the C-terminius is often possible because ofthe occurrence of the protonated C-terminal amino acid as a result of MH+ ion fragmentation. In all cases, including those where the abundance of this C-terminal ion is too low for identification, the metastable ion spectrum of the MH+ ion provides sufficient information for an unequivocal sequence determination.
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bms.1200170305
