M/q: Difference between revisions
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<big> | <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> | ||
{{DiscDef}} | {{DiscDef}} | ||
Revision as of 11:21, 29 July 2006
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
| 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..
