Mass peak: Difference between revisions

Latest revision as of 12:47, 25 October 2013

Mass peak
IUPAC RECOMMENDATIONS 2013
mass peak peak (in mass spectrometry) Localized region of relatively intense detector response in a mass spectrum when ions of a specified m/z are detected. If resolving power is insufficient two or more components of similar m/z may contribute to one unresolved mass peak. Note 1: Although mass peaks are often associated with particular ions, the terms peak and ion should not be used interchangeably. Note 2: Care should be used to distinguish mass spectrum peaks from chromatographic peaks in GC-MS and LC-MS.
Related Term(s):
Reference(s): IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979. Compiled by J. Inczdy, T. Lengyel, A. M. Ure. Blackwell Scientific Publications, Oxford (1997). On-line corrected version: http://www.iupac.org /publications/analytical compendium (2000). IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins.
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

Mass peak
GOLD BOOK DEFINITION IUPAC. Compendium of Chemical Terminology, 2nd ed. (the Gold Book). Compiled by A. D. McNaught and A.Wilkinson. Blackwell Scientific Publications, Oxford (1997).
A record of the ion current, at a specific mass to charge ratio, received by the collector. Source: PAC, 1990, 62, 2167 (Glossary of atmospheric chemistry terms (Recommendations 1990)) on page 2200
IUPAC Gold Book
Index of Gold Book Terms

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-{{stub}}
+{{Final
+|acronym=
+|def='''mass peak'''
+'''[[peak (in mass spectrometry)]]'''
+Localized region of relatively intense detector response in a [[mass spectrum]] when ions of a specified ''[[m/z]]'' are detected. If [[resolving power]] is insufficient two or more components of similar ''m/z'' may contribute to one unresolved mass peak.
+:''Note 1'': Although mass peaks are often associated with particular [[ion]]s, the terms peak and ion should not be used interchangeably.
+:''Note 2'': Care should be used to distinguish [[mass spectrum]] peaks from chromatographic peaks in [[GC-MS]] and [[LC-MS]].
+|rel=
+|ref={{obgb}}
+}}
 <!-- Gold Book -->