The ability to distinguish between ions differing in the quotient mass/charge by a
small increment. It may be characterized by giving the peak width, measured in mass
units, expressed as a function of mass, for at least two points on the peak, specifically
at fifty
percent and at five
percent of the maximum peak height.
Source:
PAC, 1978, 50, 65
(Recommendations for symbolism and nomenclature for mass spectroscopy)
on page 72
PAC, 1991, 63, 1541
(Recommendations for nomenclature and symbolism for mass spectroscopy (including an
appendix of terms used in vacuum technology). (Recommendations 1991))
on page 1554