Patent ID: 9384957
Filing Date: 2016-07-05
CPC Classification: H01J

Claim Text:
1. A mass spectrometer provided with an ion dissociator for dissociating ions originating from a compound in a sample and a mass analyzer for performing mass analysis on ions generated by an ion dissociation operation of the ion dissociator and configured to be able to perform MS n (where n is an integer equal to or larger than 2) analysis, the mass spectrometer comprising: a) an analysis controller for causing the ion dissociator to perform a dissociation operation with a dissociation condition adjusted such that a peak corresponding to a known mass-to-charge ratio and observed in an MS b) a spectrum creator for creating the MS c) a mass calibration processing unit for detecting the peak corresponding to the known mass-to-charge ratio in the MS wherein the peak corresponding to the known mass-to-charge ratio is a peak of a precursor ion for MS