Patent ID: 8916818
Filing Date: 2014-12-23
Classification: G01N,H01J

Abstract:
1. A chromatograph tandem quadrupole mass spectrometer for performing a product ion scan measurement, comprising: a chromatograph unit in which a variety of components contained in a sample are temporally separated; and a tandem quadrupole mass analysis unit to which the components are introduced from the chromatograph unit for an MS/MS analysis, said tandem quadrupole mass analysis unit comprising: a compound information memory in which compound information is stored, the compound information including, as information on a compound to be analyzed, a name of the compound, a retention time of the compound, and a mass-to-charge ratio which characterizes the compound; and a measurement condition table creator for creating a measurement condition table which specifies, as measurement conditions for a product ion scan measurement which is performed to determine an MRM measurement parameters, at least a measurement time range for performing the product ion scan measurement, a mass-to-charge ratio of a precursor ion in the product ion scan measurement, and mass-to-charge ratio range to be scanned in the product ion scan measurement, wherein the measurement condition table for all or part of compounds which are registered in the compound information table stored in the compound information memory is created by setting a mass-to-charge ratio associated with each compound as the aforementioned mass-to-charge ratio of the precursor ion, a mass-to-charge ratio range which is computed based on the mass-to-charge ratio of the precursor ion as the aforementioned mass-to-charge ratio range to be scanned, and a time range in which a predetermined temporal width is added before and after a retention time associated with each compound as the aforementioned measurement time range.