Reverse library search: Difference between revisions

Latest revision as of 12:25, 8 January 2014

Reverse library search
IUPAC RECOMMENDATIONS 2013
Process of comparing a subset of the peaks in the mass spectrum of an unknown compound with peaks present in the library mass spectrum. Any peaks in the mass spectrum of the unknown compound that are not in the library spectrum are disregarded. Note: A reverse library search measures the extent to which the peaks in a reference spectrum are present in the unknown spectrum and is more effective than a forward library search when peaks arising from two or more components are present in the unknown spectrum
Related Term(s):
Reference(s): F. P. Abramson. Anal. Chem. 47, 45 (1975). (http://dx.doi.org/10.1021/ac60351a028 )
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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-{{Def2|
+{{Final
-A procedure of comparing a [[mass spectrum]] of an unknown compound with a mass spectral library so that the unknown spectrum is compared in turn with the library spectra, considering only the ''[[m/z]]'' peaks observed to have significant intensity in the current library spectrum.
+|acronym=
-}}
+|def=Process of comparing a subset of the [[peak]]s in the [[mass spectrum]] of an unknown compound with peaks present in the library mass spectrum. Any peaks in the mass spectrum of the unknown compound that are not in the library spectrum are disregarded.
+:''Note:'' A reverse library search measures the extent to which the peaks in a reference spectrum are present in the unknown spectrum and is more effective than a [[forward library search]] when peaks arising from two or more components are present in the unknown spectrum
-{{jchrom|
+|rel=
-The process of comparing a subset of the peaks in the [[mass spectrum]] of an unknown compound with [[peak]]s in a [[library mass spectrum]]. Any peaks in the mass spectrum of the unknown compound that are not in the library spectrum are disregarded.
+|ref=F. P. Abramson. Anal. Chem. 47, 45 (1975). (http://dx.doi.org/10.1021/ac60351a028 )
-|
-#F.P. Abramson, Anal. Chem. 47 (1975) 45.
 }}