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Pub. No.:    WO/2017/149794    International Application No.:    PCT/JP2016/070026
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Thu Jul 07 01:59:59 CEST 2016
IPC: G01N 30/86
G01N 27/62
G01N 30/72
Inventors: NAKAYAMA, Daisuke
中山 大介
Provided is a chromatograph device capable of correct measurement even if the retention times of target components change. This chromatograph device is provided with: a storage unit 41 for storing measurement parameters for a plurality of target components, measurement conditions including measurement parameter switching times for each of two target components eluted in succession, and formulas for determining the switching times from predetermined retention times for the target components; a measurement data accumulation unit 42; a preceding-measurement-data determination unit 43 for determining, at the time of sample measurement, whether there is preceding measurement data for the same column 13 type, mobile phase type, and flow velocity; and a measurement execution unit 44 for carrying out measurement on the basis of the measurement conditions if there is no preceding measurement data and, if there is preceding measurement data, determining the retention times of the target components on the basis of the most recent preceding measurement data, determining updated switching times on the basis of the retention times and formulas, and carrying out measurement with the switching times changed to the updated switching times.