Mass-analyzed ion kinetic energy spectrometry: Difference between revisions

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{{Def2|
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A procedure by which mass spectra 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 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 kinetic energy-to-charge ratios of the various product ions are analyzed by scanning the electric sector field E. The width of the product ion spectrum peaks is related to the kinetic energy release distribution for the dissociation process.
|acronym=(MIKES)
|def=Deprecated: [[direct analysis of daughter ions]] ([[DADI]]).


The term [[direct analysis of daughter ions]] ([[DADI]]) is deprecated.
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).


{{rev5|
:''Note 1'': In this context, kinetic energy is interpreted as translational rather than vibrational or rotational kinetic energy.
A 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 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=
'''Note 2''': The accelerating voltage, 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.
|ref=J. H. Beynon, R. G. Cooks. Res. Dev. 22, 26 (1971).
 
'''Note 3''':  direct analysis of daughter ions (DADI) is deprecated.
 
Related terms:  [[ion energy loss spectrum]], [[ion kinetic energy spectrometry]], [[kinetic energy release]].
 
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#J. H. Beynon, R. G. Cooks. Res. Dev, 22, 26 (1971).
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{{Disc}}
== See also ==
*[[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)]


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

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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