Patent ID: 7544930
Filing Date: 2009-06-09
Classification: H01J

Abstract:
1. A tandem type mass analysis system having a reference data base for storing data based on mass analysis spectra of a reference specimen, a chromatography unit for separating the substances included in the specimen, an ionizing unit for ionizing the substances included in the specimen, an ion dissociating unit for dissociating the ions, an ion separating unit for separating the dissociated ions, an ion detecting unit for producing mass analysis spectra by detecting the separated ions for each mass charge ratio m/z, and a data processing unit for comparing the mass analysis spectra obtained by the ion detecting unit with the mass analysis spectra stored in the reference data base, wherein mass analysis is carried out with the all ion species included in the specimen in each mass charge ratio m/z region being dissociated for each of a plurality of preliminarily set up mass charge ratio m/z regions, the measurement MS