Data-processing device for chromatograph

A data-processing device to be used for a chromatograph including a column, a sample-introducing section configured to introduce a sample into the column, and a detector configured to detect a component in the sample that has flown through the column, the data-processing device comprising:

• a) an input section configured to allow a user to input information of a schedule table for a plurality of analyses to be performed under different conditions, the schedule table describing a1) an analysis condition of each analysis including a combination of values of a plurality of control parameters, a2) an order of execution of the plurality of analyses, and a3) information for identifying a sample to be subjected to each analysis, wherein the plurality of analyses includes analyses which are continuously performed on a single sample, wherein each of the plurality of analyses are performed under different conditions of separating components contained in the single sample;
• b) controller configured to operate the sample-introducing section according to the schedule table;
• c) a chromatogram creator configured to sequentially receive a series of data collected with the detector during two or more analyses among the plurality of analyses described in the schedule table and to create a joint chromatogram from the series of data when the two or more analyses are scheduled to be continuously performed for the single sample;
• and
• d) a display configured to display the joint chromatogram.