Liquid chromatograph system and liquid chromatograph analysis method

A liquid chromatograph system comprising:

• a plurality of chromatograph units each having an autosampler for sampling a sample as an object to be analyzed and supplying the sample to a column for analysis;
• a pump for supplying eluant to the column;
• a column oven for maintaining the column at a constant temperature;
• a detector for collecting measurement data produced in association with the supplying of the sample to the column;
• and
• a data processor for processing the measurement data from the chromatograph units, thereby obtaining an analysis result,
• wherein the system further comprises:
• a main storage, provided in the data processor, for storing system configurations in each of which a chromatograph unit to be used, of the plurality of chromatograph units, and devices in said chromatograph unit are defined along with analysis parameters corresponding to the system configurations;
• a main controller, provided in the data processor, for sending the analysis parameters stored in the main storage to the chromatograph unit defined in each system configuration, and requesting each device defined in each system to execute a measurement operation and, in the case of an error, to return peculiar information about each device defined in each system configuration;
• and
• a unit controller provided in each of the chromatograph units, for causing each device of the chromatograph unit to execute the measurement operation under the analysis parameters in response to a measurement operation request from the main controller and send measurement data to said main controller for storage in said main storage in association with said analysis parameters stored therein, check whether an error was produced in any of the devices defined in each system configuration during said measurement operation, and upon detection of an error, send the error information to said main controller, acquire the peculiar information about each device in response to a request from said main controller after an error has occurred and send the peculiar information about each device to the main controller;
• and
• the main controller creating an error analysis information file for analyzing said error on the basis of the error information, the peculiar information, and the analysis parameters, and storing said error analysis information file in the main storage in association with the system configuration in which the device in which said error occurred is defined.