M/q

From MS Terms
Revision as of 09:33, 30 July 2006 by Kkmurray (talk | contribs) (Reverted edit of Ionworker, changed back to last version by Kkmurray)

This is non-standard notation

See proposed definition on the M/q discussion page.

Gold Book Entry

The abbreviation m/z is used to denote the dimensionless quantity formed by dividing the mass number of an ion by its charge number. It has long been called the mass-to-charge ratio although m is not the ionic mass nor is z a multiple or the elementary (electronic) charge, e. The abbreviation m/e is, therefore, not recommended. Thus, for example, for the ion C7H72+, m/z equals 45.5..

Related Terms

m/z