charge-transfer reaction

in mass spectrometry
https://doi.org/10.1351/goldbook.C01005
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:
C01005-1.png
C01005-2.png
C01005-3.png
All are ion/neutral species reactions and also charge permutation reactions.
Source:
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 [Terms] [Paper]