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Mass spectrometer system

  • US 20050063864A1
  • Filed: 05/20/2004
  • Published: 03/24/2005
  • Est. Priority Date: 08/13/2003
  • Status: Active Grant
First Claim
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1. A mass spectroscopy system comprising:

  • ionization means for ionizing a substance as an object of measurement for a mass spectrometer; and

    means for selecting an ion species with a specific mass-to-charge ratio m/z from ions produced by said ionization means and dissociating the same, wherein the selection, dissociation and measurement of the ion species as the measurement object are repeated in a plurality of stages, said mass spectroscopy system further comprising;

    mass spectroscopy data acquisition means for performing the selection and dissociation of an ion species n−

    1 times (n≧

    1, where n is an integer) and acquiring a peak of measurement intensity against the mass-to-charge ratio of the ion that has been selected and dissociated;

    correspondence determination means for comparing the peak of measurement intensity against the mass-to-charge ratio of the ion that is obtained by the mass spectroscopy data acquisition means with the characteristics data of a certain ion species in order to determine the possibility of correspondence of the ion that has been selected and dissociated to the certain ion species; and

    next-analysis content determination means for determining the analysis content in an n-th stage mass spectroscopy based on the result of determination by said correspondence determination means.

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