CHROMATOGRAPH DEVICE

In the present invention, before measurement, an analyst uses an input unit (5) to select a chromatogram (a chromatogram for a specific wavelength or the chromatogram for all wavelengths) for peak detection and specify a peak count determination value as measurement completion conditions. During measurement by a measurement unit (1), a chromatogram creation unit (22) creates a chromatogram in nearly real time on the basis of collected data, and a peak detection unit (23) detects the peaks of the chromatogram. A measurement completion condition detection unit (24) counts the detected peaks anddetermines that the measurement completion conditions have been met if the counted value reaches the peak count determination value. After a prescribed amount of time has passed from that point in time, a measurement completion timing determination unit (25) instructs the analysis control unit (3) to end measurement. Setting appropriate measurement completion conditions according to, for example,the number of target compo