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US 11,961,726 B2Granted
Mass spectrum processing apparatus and method
AssigneeJEOL Ltd.
InventorHirokazu Tanaka
Life of this patent
Estimating the term…
Abstract
A first trend chart and a second trend chart are displayed along with a chromatogram. The first trend chart is generated based on a plurality of first representative value arrays obtained from a plurality of mass spectra. The second trend chart is generated based on a plurality of second representative value arrays obtained from the plurality of mass spectra. A mass spectrum stable period is determined based on the first trend chart and the second trend chart.
Claims8
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.
13 more elements
A mass spectrum processing method, comprising:
- generating, by at least one processor, a chromatogram based on a mass spectrum array formed from a plurality of mass spectra arranged on a time axis;
- identifying, by at least one processor, for each mass spectrum, a plurality of representative peaks included in a mass spectrum constituting the mass spectrum array;
- extracting, by at least one processor, the plurality of representative peaks included in the mass spectrum;
- identifying, by at least one processor, a representative peak array formed from the plurality of representative peaks included in a mass spectrum, for each mass spectrum, based on a mass spectrum array formed from a plurality of mass spectra arranged on a time axis;
- plotting, by at least one processor, a plurality of graphs reflecting temporal changes of the plurality of representative peaks based on a plurality of representative peak arrays identified from the plurality of mass spectra;
- generating, by at least one processor, a trend chart formed from the plurality of graphs reflecting temporal changes of the plurality of representative peaks based on the plurality of representative peak arrays identified from the plurality of mass spectra;
- displaying, by at least one processor, the chromatogram, the trend chart, and mass spectrum stability information generated from the trend chart;
- determining, by at least one processor, a mass spectrum stable period by analyzing the trend chart based on the mass spectrum stability information;
- and
- detecting, by at least one processor, peaks in the chromatogram while distinguishing the peaks from noise based on the mass spectrum stable period.
7 more elements
A computer program product comprising a non-transitory storage medium including one or more instructions that, when executed by at least one processor, cause the at least one processor to:
- generate a chromatogram based on a mass spectrum array formed from a plurality of mass spectra arranged on a time axis;
- 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 a representative peak array formed from the plurality of representative peaks included in a mass spectrum, for each mass spectrum, based on a mass spectrum array formed from a plurality of mass spectra arranged on s time axis,
- plot a plurality of graphs reflecting temporal changes of the plurality of representative peaks based on a plurality of representative peak arrays identified from the plurality of mass spectra;
- generate a trend chart formed from the plurality of graphs reflecting temporal changes of the plurality of representative peaks based on the plurality of representative peak arrays identified from the plurality of mass spectra;
- display, the chromatogram, the trend chart, and mass spectrum stability information generated from the trend chart;
- 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.
7 more elements
Dependencies are inferred from the claim text.