Difference between revisions of "Resolution (mass spectrometry)"

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{{Def2|
 
{{Def2|
 
Smallest mass difference Δ'''m''' between two equal magnitude peaks such that the valley between them is a specified fraction of the peak height
 
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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{{Rev5|
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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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Revised from [5] and from [8, 118, 165, 166].
 
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Revision as of 15:53, 17 March 2010