ioon, mis ei lagune spontaanselt enne detektorini jõudmist tütarioonideks või neutraalseteks fragmentideks ega reageeri muul viisil
an ion which is not sufficiently excited to dissociate spontaneously into a daughter ion and associated neutral fragment(s) or to react further in any other way within the time scale of the experiment, e.g. until hitting the detector.
