Difference between revisions of "Resolution (mass spectrometry)"

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{{Def2|
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{{Rev7|acronym=
Smallest mass difference Δ'''m''' between two equal magnitude peaks such that the valley between them is a specified fraction of the peak height
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|def='''Synonym:''' [[mass resolution]]
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In a mass spectrum, the observed [[m/z]] value divided by the smallest difference ?(m/z) for two ions that can be separated: (m/z)/ ?(m/z).
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:Note 1: The m/z value at which the measurement was made should be reported.
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:Note 2: The definition and method of measurement of ?(m/z) should be reported. Commonly this is performed using peak width measured at a specified percentage of peak height.
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:Note 3: Alternatively ?(m/z) is defined as the separation between two adjacent equal magnitude peaks such that the valley between them is a specified fraction of the [[peak]] height, for example as measured by [[peak matching]].
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|rel=[[resolution: 10 percent valley definition]], [[resolution: peak width definition]], [[resolving power (mass spectrometry)]].
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|ref=
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{{ob}}
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O. D. Sparkman. Mass Spec Desk Reference. Global View Publishing, Pittsburgh (2006)
  
{{Rev5|
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G. L. Glish, D. J. Burinsky. J. Am. Soc. Mass Spectrom. 19, 161-172 (2008).
'''mass resolution'''
 
  
In a mass spectrum, the observed [[m/z]] value divided by the smallest difference ?(m/z) for two ions that can be separated: (m/z)/Δ(m/z).  
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A. G. Marshall, C. L. Hendrickson, G. S. Jackson. Mass Spectrom. Rev. 17, 1-35 (1998).
  
Note 1: The m/z value at which the measurement was made should be reported.  
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J. Laskin and J. H. Futrell. Mass Spectrom. Rev. 24, 135-167 (2005).
  
Note 2: The definition and method of measurement of ?(m/z) should be reported. Commonly this is performed using peak width measured at a specified percentage of peak height.
+
}}
  
Note 3: Alternatively ?(m/z) is defined as the separation between two adjacent equal magnitude peaks such that the valley between them is a specified fraction of the peak height, for example as measured by peak matching.
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=Other versions=
  
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{{Def2|
#Revised from [[Orange Book]]
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Smallest mass difference Δ'''m''' between two equal magnitude peaks such that the valley between them is a specified fraction of the peak height
#[[Mass Spec Desk Reference]]
 
#A. G. Marshall, C. L. Hendrickson, G. S. Jackson. Mass Spectrom. Rev. 17, 1-35 (1998).
 
#G. L. Glish, D. J. Burinsky. J. Am. Soc. Mass Spectrom. 19, 161-172 (2008).
 
#J. Laskin, J. H. Futrell. Mass Spectrom. Rev. 24, 135-167 (2005).
 
 
}}
 
}}
  

Revision as of 01:30, 8 October 2012