Ion suppression

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Ion suppression
ion suppression

ionization suppression

Phenomenon in which the ionization efficiency of a species is lowered by the presence of a different species.

Note: The effect is most significant in electrospray ionization but is also observed in atmospheric pressure chemical ionization and to a lesser extent in other ionization methods.
Related Term(s): ion enhancement, matrix effect
From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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