| 摘要 |
PROBLEM TO BE SOLVED: To provide a data processing device, a data processing method for chromatograph and a chromatographic analysis system with which it is possible to adjust component concentration in a sample to an appropriate value without relying on the experience or intuition of an analyst.SOLUTION: The analysis system of the present invention comprises an auto sampler 3 for injecting a liquid sample into the mobile phase fed by a liquid-sending pump 2, a column 5 into which the liquid sample carried on the mobile phase is sent, a PDS 6 for detecting the spectrum of each component, and a data processing device 7, etc. When chromatographic analysis is executed, the data processing device 7 acquires the three-dimensional data of time, wavelength, and intensity is acquired from the PDA 6, and processes the data and finds the quantitative value of a target component in the liquid sample. At this time, if the peak top intensity of the target component is off a dynamic range, the peak top intensity of the target component is calculated using a ratio between intensity in peak top wavelength in a spectrum at each point of time to which the peak belongs and intensity in another wavelength, and the dilution rate of the liquid sample is determined.SELECTED DRAWING: Figure 1 |
