Preferred Label : mass-to-charge ratio;
Detailed label : mass-to-charge ratio in mass spectrometry, mz;
IUPAC definition : 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 (C sub 7 /sub H sub 7 /sub sup 2 /sup ) , m/z equals 45.5.;
Origin ID : M03752;
Automatic exact mappings (from CISMeF team)
- See also
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 (C sub 7 /sub H sub 7 /sub sup 2 /sup ) , m/z equals 45.5.
