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Data processing device for chromatograph, data processing method, and chromatograph

A data processing device and data processing technology, applied in the field of chromatographic analysis, can solve problems such as curve deviation and increased calculation and processing load, and achieve the effect of reducing the impact of noise and reducing the calculation and processing load

Active Publication Date: 2020-09-29
HITACHI HIGH TECH SCI CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] When performing curve fitting such as a Gaussian function using the above-mentioned nonlinear least square method, if the number of plots is small, the obtained curve may not follow the actual waveform. On the other hand, if When the number of plots is large, the computational processing load of virtual curve calculation processing (curve fitting) increases
In addition, due to the influence of noise, the calculated curve is likely to deviate from the actual waveform

Method used

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  • Data processing device for chromatograph, data processing method, and chromatograph
  • Data processing device for chromatograph, data processing method, and chromatograph
  • Data processing device for chromatograph, data processing method, and chromatograph

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Embodiment Construction

[0021] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0022] (Structure of liquid chromatograph 100)

[0023] figure 1 A schematic configuration of the liquid chromatograph 100 is shown. The liquid chromatograph 100 has: a mobile phase container 110, which stores a liquid as a mobile phase; a pump 120, which transports the mobile phase; an autosampler 130, which injects a sample; The components in the sample are separated; the detector 150 detects the separated components; the data processing device 160 processes the detection results; and the display unit 170 displays the processing results. In addition, each part constituting the liquid chromatograph 100 can be configured in the same manner as a normal device except for the processing contents of the data processing device 160 , and thus detailed description thereof will be omitted.

[0024] (Detailed structure of data processing device 160)

[0025] Such a...

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Abstract

The invention provides a data processing device for a chromatograph, a data processing method, and a chromatograph, and the influence of noise and computation processing load during virtual curve computation processing are reduced. A data processing device for a chromatograph, which performs data processing on the basis of plotting data measured by the chromatograph, is provided with: a virtual curve calculation data generation part that finds virtual curve calculation data having a smaller number than the measured plotting data; and an arithmetic processing part (163) that functions as a virtual curve calculation part that finds a virtual curve on the basis of the virtual curve calculation data.

Description

technical field [0001] The invention relates to chromatographic analysis techniques such as liquid chromatographs, and in particular to a data processing device, a data processing method and a chromatograph of the chromatograph. Background technique [0002] In a chromatograph, the types and amounts of components contained in an analysis sample are determined from waveform data with time on the horizontal axis and signal intensity on the vertical axis. At this time, based on the data detected by the device, characteristic points such as the start point of the signal strength rise and the end point of the fall are detected to perform waveform processing. Specifically, feature points such as starting points are found by performing virtual curve calculation processing (curve fitting) such as a Gaussian function using, for example, a nonlinear least square method (for example, refer to Patent Document 1). [0003] Patent Document 1: Japanese Patent Laid-Open No. 2006-177980 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/86
CPCG01N30/02G01N30/86G01N30/861G01N2030/027G01N30/8631G01N30/8603G01N2030/862G01N30/8641G01N2030/8804G01N30/8675G01N30/88G01N30/8651
Inventor 伊藤正人福田真人
Owner HITACHI HIGH TECH SCI CORP
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