Matrix (mass spectrometry)

In mass spectrometry, a matrix is a compound that promotes the formation of ions. Matrix compounds are used in matrix-assisted laser desorption/ionization (MALDI), matrix-assisted ionization (MAI), and fast atom bombardment (FAB).

This article is about ionization assisting compounds for mass spectrometry. For the non-analyte components of a sample, see matrix (chemical analysis).
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