Matrix film deposition system and matrix film deposition method

Abstract

In a system for depositing a matrix film by nebulizing a matrix solution to a sample plate on which a sample is placed, a chamber is filled with a dry gas by supplying the dry gas into the chamber in a state where the sample plate is housed in the chamber (step S12), thereafter, the supply of the dry gas to the chamber is stopped (step S14), and in this state, a solution containing a matrix substance used for a matrix-assisted laser desorption/ionization method is nebulized toward the sample plate (step S15). As a result, it is possible to enhance the extraction efficiency of the measurement target component in the sample into the matrix solution while suppressing the size of the crystal particles formed on the sample plate, and it is possible to stably achieve high spatial resolution and high detection sensitivity in mass spectrometry imaging.

Dependencies are inferred from the claim text.