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Welcome to the Mass Spectrometry Terms and Definitions Project Page

This goal of this site was to provide information about the IUPAC sponsored project to update the Standard Terms and Definitions for Mass Spectrometry. The wiki was open for comment between 2004 and 2006 and is now being maintained as a reference tool and as an example of using a wiki for development of a glossary of terms.

There are currently 2,071 entries in MS Terms as of Thursday March 28, 2024.


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Full list of mass spectrometry terms.
IUPAC Orange Book MS Terms
IUPAC Gold Book MS Terms
ASMS Terms and Definitions Poster Terms
IUPAC MS Terms Project 2006 Draft
Journal of Chromatography Glossary Terms

Previous lists of mass spectrometry terms

Working Drafts of the Mass Spectrometry Terms Document

Working drafts were distributed and posters were presented at ASMS meetings in 2004 (with workshop), 2005 (with workshop), and 2006, BMSS meetings in 2004 and 2005, ACS in spring 2005, World Chemical Congress, Beijing, China, August, 2005, and the International Mass Spectrometry Conference, Prague, Czech Republic, August 2006. Public discussion is now closed and the mass spectrometry terms document is undergoing peer review as a submission to Pure and Applied Chemistry.

  • IUPAC Task Group MS Terms Third and Final Public Draft
External review submit draft of August 2006 (PDF Version).
International Mass Spectrometry Conference Poster (PDF)
  • IUPAC Task Group MS Terms Second Public Draft
Pre-review draft March 2006 (PDF Version).
  • Second Public Draft (ASMS Version)
Draft of May 2006 - reformatted from March 2006 (PDF Version).
  • First Public Draft
Presented at the 2005 American Society for Mass Spectrometry meeting June 2005..