Chemi-ionization

Chemi-ionization is a process in which a chemical reaction results in the formation of ions. This typically occurs when an excited state of a molecule, often produced by a chemical reaction or energy transfer, interacts with another molecule, leading to the removal of an electron and the generation of ions. In many cases, chemi-ionization can happen as a result of a reaction between atoms or molecules that produces energy sufficient to ionize one of the reacting species.