ISSN:
0951-4198
Keywords:
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Physics
Notes:
Reaction-intermediate spectra are reported for peptide mixtures using a hybrid BEQQ and a pentaquadrupole mass spectrometer. In this extended tandem mass spectrometry scan, the protonated molecule and a terminal fragment ion are selected with the first and third mass analyzers, respectively. A subsequent linked scan at constant B/E (hybrid instrument) or a scan of the middle quadrupole (pentaquadrupole instrument) produces the reaction-intermediate spectrum. The resulting spectra are simpler than conventional tandem mass spectrometry daughter-ion spectra and display only sequence ions of one group, viz. A, B and C or X, Y and Z. This information facilitates structural elucidation and is obtainable on nanomole amounts of peptide.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/rcm.1290030910
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