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Definitions of Terms Relating to Mass Spectrometry

This site was created to support the IUPAC project Standard definitions of terms relating to mass spectrometry and was open for comment between 2004 and 2006. It now contains links to numerous mass spectrometry terminology definitions from the IUPAC Gold Book, Orange Book, 2013 Recommendations, and other sources.

As of Wednesday September 10, 2025, the site contains 2,240 entries that have been edited 21,026 times and viewed Template:NUMBEROFVIEWS times.

Definitions of Terms Relating to Mass Spectrometry Online/Wiki version: Index of Definitions Search the Wiki

Print/PDF Version: PDF Article Pure and Applied Chemistry Page K. K. Murray, R. K. Boyd, M. N. Eberlin, G. J. Langley, L. Li and Y. Naito, "Definitions of Terms Relating to Mass Spectrometry" (IUPAC Recommendations 2013) Pure Appl. Chem. 2013, 85, 1515-1609.