Boundary Effects and Collisional Activation in a Quadrupole Ion Trap

Paradisi, Cristina and Todd, John F.J. and Traldi, Pietro and Vettori, Umberto (1992) Boundary Effects and Collisional Activation in a Quadrupole Ion Trap. Organic Mass Spectrometry, 27 (3). pp. 251-254. ISSN 0030-493X. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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The effects of storing ions at different values of the stability parameters a(z) and q(z) were studied in a quadrupole ion trap, using helium or argon as buffer. A region was localized near the boundaries of the stability diagram in which the ions experience an increase in their kinetic energy. This is reflected in the occurrence both of fragmentation due to collisional activation and of a certain extent of ion loss due to unstable trajectories. The results of this excitation, referred to as 'boundary effects,' depend on the specific q(z) at which the ion storage is performed and on the buffer gas used, and point to a simpler means of obtaining tandem mass spectra with the ion trap without the need to apply resonant tickle voltages between the end-cap electrodes.

Item Type: Article
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 11:31
Last Modified: 10 Jun 2014 10:32
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