Chemical ionization
From Mass Spec Terms
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Orange Book Entry
Describes the process whereby new ionized species are formed when gaseous molecules interact with ions. The process may involve transfer of an electron, a proton or other charged species between the reactants. When a positive ion results from chemical ionization the term may be used without qualification. When a negative ion results the term negative ion chemical ionization should be used. Note that this term is not synonymous with chemi-ionization, nor with negative chemical ionization.
External Links
ASMS What is MS?: What Other Techniques are used to Produce Ions?
