Sustained off-resonance irradiation: Difference between revisions

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A technique associated with [[Fourier Transform Ion Cyclotron (FT-ICR) Mass Spectrometer|Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry]] to carry out ion/neutral species processes, e.g. [[Low-Energy Collision-Induced Dissociation|low-energy collision-induced dissociation]]. A radio-frequency electric field of slightly off-resonance to the cyclotron resonance frequency of the reactant ion cyclically accelerates and decelerates the reactant ion that is confined in the ICR (Penning) ion trap. As this consequence the ion's orbit does not exceed the dimensions of ICR (Penning) ion trap while the ion undergoing an ion/neutral species process keeps high (average) translational energy for an extended time frame.
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|def=Procedure associated with [[Fourier transform-ion cyclotron resonance-mass spectrometer]]s to facilitate [[ion/neutral reaction]]s such as [[low-energy collision-induced dissociation]] in which a radio-frequency electric field, slightly off-resonance with respect to the [[cyclotron frequency]] of the reactant ion, cyclically accelerates and decelerates the reactant ion that is confined in the [[Penning ion trap]]. As a consequence, the orbit does not exceed the dimensions of the [[ion trap]] but maintains a high average translational energy for an extended time that activates an ion/neutral process.
 
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|ref=J. W. Gauthier, T. R. Trautman, D. B. Jacobson. Anal. Chim. Acta 246, 211 (1991). (http://dx.doi.org/10.1016/S0003-2670(00)80678-9 )
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[[Category:Reactions]]
[[Category:Reactions]]

Latest revision as of 14:01, 8 January 2014

IUPAC RECOMMENDATIONS 2013
Sustained off-resonance irradiation
Procedure associated with Fourier transform-ion cyclotron resonance-mass spectrometers to facilitate ion/neutral reactions such as low-energy collision-induced dissociation in which a radio-frequency electric field, slightly off-resonance with respect to the cyclotron frequency of the reactant ion, cyclically accelerates and decelerates the reactant ion that is confined in the Penning ion trap. As a consequence, the orbit does not exceed the dimensions of the ion trap but maintains a high average translational energy for an extended time that activates an ion/neutral process.
Related Term(s):
Reference(s):

J. W. Gauthier, T. R. Trautman, D. B. Jacobson. Anal. Chim. Acta 246, 211 (1991). (http://dx.doi.org/10.1016/S0003-2670(00)80678-9 )

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

Index of Recommended Terms