M/q: Difference between revisions

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<big>m/Q is the standard symbol for the derived physical quantity of mass-to-charge ratio according to the conventions by ISO 31 and the IUPAC green book </big>
<big>This is non-standard notation</big>


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Revision as of 09:33, 30 July 2006

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