Patent ID: 11961726
Assignee: JEOL LTD.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A mass spectrum processing apparatus, comprising:
a chromatogram generation unit comprising at least one processor configured to:
generate a chromatogram based on a mass spectrum array formed from a plurality of mass spectra arranged on a time axis;

a graph generation unit comprising at least one processor configured to:
identify, for each mass spectrum, a plurality of representative peaks included in a mass spectrum constituting the mass spectrum array,
extract the plurality of representative peaks included in the mass spectrum,
identify, based on the plurality of representative peaks, a representative value array formed from a plurality of representative values as a characteristic amount of the mass spectrum, and
plot a plurality of graphs representing temporal changes of the representative value array, as the plurality of graphs, based on a plurality of representative value arrays obtained from the plurality of mass spectra,

a chart generation unit comprising at least one processor configured to:
generate a trend chart formed from the plurality of graphs reflecting temporal changes of the plurality of representative peaks;

a display processing unit comprising at least one processor configured to:
display the chromatogram, the trend chart, and mass spectrum stability information generated from the trend chart; and

an analyzer comprising at least one processor configured to:
determine a mass spectrum stable period by analyzing the trend chart based on the mass spectrum stability information; and
detect peaks in the chromatogram while distinguishing the peaks from noise based on the mass spectrum stable period.