Method and apparatus for chromatographic data processing
AssigneeHitachi, Ltd.
InventorsMasahito Ito, Kisaburo Deguchi
Life of this patent
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Abstract
A chromatographic analyzer is provided for facilitating curve fitting by means of the linear least-square method for a chromatogram that contains a plurality of overlapping peaks. A chromatographic data processor executes fitting processing to each peak in an arbitrary time region having the plurality of peaks of the chromatogram starting from the front or back side of the time region or from the back side of the time region, and the processed peaks are subtracted from the chromatogram in the time region so that the plurality of peaks in the chromatogram can be separated from one another.
Claims10
A chromatographic analyzer comprising:
- a sample separating unit for separating a sample to be measured into components;
- a detecting unit for detecting the separated sample, the detecting unit comprising a photometer capable of detecting each of the components as an output value at each elapsing time;
- a data processing unit for executing data processing by obtaining a detected result from the detecting unit, the data processing unit comprising:
- a unit which specifies a retention time interval having a plurality of peaks of a chromatogram obtained as the detected result of the detecting unit;
- and a unit which specifies a fitting direction for executing fitting processing in the specified fitting direction for the specified retention time interval;
- and
- a display unit for displaying a dialogue box for selecting the fitting direction and for displaying a fitting result obtained from the data processing unit.
A chromatographic analyzer comprising:
- a sample separating unit which separates a sample to be measured into components;
- a detecting unit which detects the separated sample, the detecting unit comprising a photometer capable of detecting each of the components as an output value at each elapsing time;
- a data processing unit which executes data processing by obtaining a detected result from the detecting unit, the data processing unit comprising a unit which specifies a fitting region having a plurality of peaks of a chromatogram obtained as the detected result of the detecting unit, wherein the fitting region represents an interval of retention time for executing fitting processing;
- and
- a display unit for displaying means for specifying a starting value and an ending value for the fitting region and for displaying results obtained from the data processing unit.
Dependencies are inferred from the claim text.