charge-transfer reaction

in mass spectrometry
An ion/neutral species reaction wherein the total charge on the reactant ion is transferred initially to the reactant neutral species so that the reactant ion becomes a neutral entity. Considering some of the possible reactions of ions M2+, M+ and M with a neutral species X, these would be further categorized as follows:
All are ion/neutral species reactions and also charge permutation reactions.
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 1555