Pulsed axial activation in the ion trap: A new method for performing tandem mass spectroscopy (MS/MS)
- 1 August 1992
- journal article
- research article
- Published by Wiley in Rapid Communications in Mass Spectrometry
- Vol. 6 (8) , 528-530
- https://doi.org/10.1002/rcm.1290060809
Abstract
A short DC voltage pulse is applied to one endcap of a quadrupole ion‐trap mass spectrometer to activate trapped ions. High internal‐energy deposition is achieved as evidenced by 91+/92+ peak ratios in excess of 20 for dissociation of the n‐butylbenzene molecular ion.1 The amount of internal energy can be controlled directly by vaarying the amplitude of the pulse. Dissociation efficiencies are less than those typically observed for collision‐induced dissociation in the ion trap and range from 50% at low internal energy deposition to 5% at maximum internal energy deposition.Keywords
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