Liquid chromatograph system and control method

A control method for a liquid chromatograph system for performing analysis of a plurality of samples, executed by a computer,

• wherein the liquid chromatograph system comprises:
• a plurality of streams for separating a sample;
• a sample injection device for injecting a sample into each of the plurality of streams;
• and
• a detector disposed downstream of the plurality of streams for analyzing the sample separated in each of the plurality of streams,
• wherein each of the plurality of streams includes:
• a column for separating the sample injected into the stream;
• and
• a supply device for supplying a mobile phase used in the column,
• wherein the supply device includes:
• a container for storing a predetermined type of mobile phase;
• and
• a pump for supplying the column with the mobile phase stored in the container,
• wherein the plurality of streams include at least two streams having stream configurations related to sample separation, each stream configuration including a different combination of a type of the mobile phase stored in the container and a type of the column,
• the control method comprising:
• a step of selecting from the plurality of streams a stream having a stream configuration corresponding to analysis conditions for separating the sample, the analysis conditions being a combination of a type of the mobile phase supplied to the column and a type of the column;
• and
• a step of executing the analysis of the sample in the selected stream.