Sample preparation method for matrix-assisted laser desorption / ionization mass spectrometry and matrix-assisted laser desorption / ionization mass spectrometry

摘要

Provided is a sample preparation method for matrix-assisted laser desorption / ionization mass spectrometry using a matrix capable of producing a preferable crystal that effectively causes ionization of a measurement molecule. As a matrix solution, a 40-mg / ml to saturated concentration solution of 2,5-dihydroxybenzoic acid is prepared, and the matrix solution is dispensed into a sample to be analyzed using an inkjet mechanism, and the 2,5-dihydroxybenzoic acid is crystallized. Preparation of a sample for matrix-assisted laser desorption / ionization mass spectrometry, comprising: