Paradisi, C. and Todd, J.F.J. and Traldi, P. and Vettori, U. (1992) Unequivocal Discrimination between Consecutive and Competing Collisionally Induced Decompositions in an Ion Trap. Rapid Communications in Mass Spectrometry, 6 (11). pp. 641-646. ISSN 0951-4198.
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Discrimination between consecutive and competing collisionally induced decomposition (CID) reactions can easily be obtained by a new procedure consisting of the collisional activation of a parent ion and the simultaneous ejection of one of its daughter ions in an ion trap. This is done by applying, during a single storage phase, a DC voltage appropriate to induce fragmentation ('boundary' activation) of the parent and, at the same time, a 'tickling' RF potential, sufficient to eject a selected daughter ion rapidly from the trap. Several examples are reported which illustrate the capabilities of this procedure in establishing fragmentation pathways e.g., to determine whether a daughter ion is formed in a stepwise process involving an intermediate primary fragment rather than from the direct fragmentation of the parent ion. Salient features of this technique are discussed.
|Subjects:||Q Science > QD Chemistry|
|Divisions:||Faculties > Science Technology and Medical Studies > School of Physical Sciences|
|Depositing User:||M. Nasiriavanaki|
|Date Deposited:||23 Aug 2009 11:42|
|Last Modified:||23 Aug 2009 11:42|
|Resource URI:||http://kar.kent.ac.uk/id/eprint/22393 (The current URI for this page, for reference purposes)|
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