Forward library search

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Forward library search
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 that have intensities greater than a specific threshold in the unknown.
Note: In a forward library search , a higher similarity index indicates the extent to which the library spectrum resembles the unknown spectrum. See also reverse library search.
Related Term(s): reverse library search

D. H. Smith, W. J. Yeager, T. C. Rindfleisch. Anal. Chem. 50, 1585 (1978). ( )

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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