MASS-SPECTROMETRY-DATA PROCESSING METHOD AND MASS-SPECTROMETRY-DATA PROCESSING DEVICE

摘要

In this mass-spectrometry-data processing method, in which a mass spectrometer capable of MSⁿ analysis (n being an integer greater than or equal to 2) is used to perform MSⁿ analysis on an analyte compound, reference-compound information that is prepared in advance for a plurality of reference compounds and associates each reference compound with a set of mass/charge ratios corresponding respectively to a plurality of mass peaks in the mass spectrum of said reference compound is presented to the operator, said operator selects one or more of the reference compounds, and the ions corresponding to the set(s) of mass/charge ratios associated with the selected reference compound(s) are all set as excluded ions. If the set of mass/charge ratios corresponding to the peaks in the MS^k spectrum of the analyte compound does not include the sets of mass/charge ratios associated with the reference compounds, the aforementioned excluded ions are excluded from the mass peaks in the MS^k spectrum and a precursor ion is selected.