Mass-analyzed ion kinetic energy spectrometry: Difference between revisions

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{{DefName|
{{Final
Spectra that are obtained from a [[sector mass spectrometer]] that incorporates at least one [[magnetic sector]] plus one [[electric sector]] in [[reverse geometry]]. The accelerating voltage, V, and the [[magnetic sector]] field, B,  are set at fixed values to select the precursor ions, which are then allowed to dissociate or to react in a [[field free region]] (FFR) between the two sectors. The kinetic energy [[product ion]]s of ''[[m/z]]'' selected [[precursor ion]]s is analyzed by scanning the [[electric sector]] field, E. The width of the [[product ion]] spectrum peaks is related to the [[kinetic energy release distribution]] ([[KERD]]) for the dissociation process.
|acronym=(MIKES)
}}
|def=Deprecated: [[direct analysis of daughter ions]] ([[DADI]]).


Procedure by which translational energy spectra are obtained from a [[sector mass spectrometer]]
that incorporates at least one magnetic sector plus one electric sector in [[reverse geometry]] (a magnetic sector followed by an electric sector).


{{Disc}}
:''Note 1'': In this context, kinetic energy is interpreted as translational rather than vibrational or rotational kinetic energy.
 
== Related Terms ==
 
*[[Sector Mass Spectrometer]]
 
*[[Field Free Region]]
 
*[[Product Ion Spectrum]]
 
*[[Kinetic Energy Release Distribution]]
 
== External Links ==
 
*[http://pubs3.acs.org/acs/journals/doilookup?in_doi=10.1021/cr990081l Experimental Techniques in Gas-Phase Ion Thermochemistry (Article)]
 
*[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=15481084&dopt=Abstract Ion activation methods for tandem mass spectrometry (Article)]


:''Note 2'': The [[accelerating potential]], V, and the magnetic flux density, B, are set at fixed values to ''m/z'' select the [[precursor ion]]s, which are then allowed to dissociate or to react in a [[field-free region]] between the two sectors. The translational energy-to-charge ratios of the various product ions are analyzed by scanning the electric sector field E. The width of a [[product ion]] spectral peak is related to the [[kinetic energy release distribution]] for the dissociation process.
|rel=
|ref=J. H. Beynon, R. G. Cooks. Res. Dev. 22, 26 (1971).
}}


[[Category:M/z Separation]]
[[Category:M/z Separation]]


[[Category:Reactions]]
[[Category:Reactions]]
{{DEFAULTSORT:Mass-Analyzed Ion Kinetic Energy Spectrometry}}

Latest revision as of 22:21, 24 October 2013

IUPAC RECOMMENDATIONS 2013
Mass-analyzed ion kinetic energy spectrometry (MIKES)
Deprecated: direct analysis of daughter ions (DADI).

Procedure by which translational energy spectra are obtained from a sector mass spectrometer that incorporates at least one magnetic sector plus one electric sector in reverse geometry (a magnetic sector followed by an electric sector).

Note 1: In this context, kinetic energy is interpreted as translational rather than vibrational or rotational kinetic energy.
Note 2: The accelerating potential, V, and the magnetic flux density, B, are set at fixed values to m/z select the precursor ions, which are then allowed to dissociate or to react in a field-free region between the two sectors. The translational energy-to-charge ratios of the various product ions are analyzed by scanning the electric sector field E. The width of a product ion spectral peak is related to the kinetic energy release distribution for the dissociation process.
Related Term(s):
Reference(s):

J. H. Beynon, R. G. Cooks. Res. Dev. 22, 26 (1971).

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

 


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