Abstract: Provided is a method for processing mass spectrometry data by which the task of analyzing data of mass spectra acquired by a mass spectrometric analysis of an analysis target sample can be efficiently performed. The method includes the steps of: preparing data of a plurality of MS/MS spectra for each of one or more compounds contained in a sample, each of the MS/MS spectra acquired by an MS/MS scan measurement using each of a plurality of different precursor ions originating from the same compound (Steps 1-3); and creating data of a merged MS/MS spectrum for each of the one or more compounds by merging the data of the plurality of MS/MS spectra acquired by the MS/MS scan measurement using the plurality of precursor ions originating from the compound concerned (Step 6).

Abstract: An analytical data analysis system (2) is a system that identifies composition substances contained in the sample to be analyzed and non-composition substances that are not the composition substance contained in the sample to be analyzed by comparing a standard chromatogram and an analysis target chromatogram.

Abstract: An analytical data analysis system (2) is a system that identifies composition substances contained in the sample to be analyzed and non-composition substances that are not the composition substance contained in the sample to be analyzed by comparing a standard chromatogram and an analysis target chromatogram.