https://doi.org/10.1351/goldbook.C01044
This refers to a process whereby gaseous molecules are ionized when they interact with other internally excited gaseous molecules or molecular moieties. Chemi-@I03183@ and chemical @I03183@ are two terms which should not be used interchangeably.
See also:
associative ionization (in mass spectrometry)
, chemical ionization (in mass spectrometry)