The reaction of a neutral molecule with an internally excited molecule to form an ion. Note that this term is not synonymous with chemical ionization.
|Considered between 2004 and 2006 but not included in the 2006 PAC submission|
|This is an unofficial draft definition presented for information and comment.|
Orange Book Entry
A process by means of which gaseous molecules are ionized when they interact with other internally excited gaseous molecules or molecular moieties. See also associative ionization. Note that this term is not synonymous with chemical ionization.