Matrix Assisted Laser Desorption/Ionization Mass Spectrometric Analysis

The invention eotdoe a mass spectrum to a method laser desorption ionization matrix help (Matrix-Assisted Laser Desorption Ionization) mass spectrometry, in particular, mass spectrometry method according to the invention by the ionization matrix assist laser desorption of analyte, both step using the above matrix, each different from each other to obtain a mass spectrum of detection spectra of analyte; And removing the matrix of the matrix in the peak angle detecting spectrum phase is based on the removal spectrum to obtain a corrected mass spectrum of the analyte-one to give the spectrum after removal, are different from each other by matrix-matrix; and a.