Method for controling liquid chromatograph and liquid chromatograph

Abstract

In a liquid chromatogram, a conflict between a separation column replacement process and a scheduled analytical operation is easily avoided. A method for controlling a liquid chromatograph includes a plurality of flow channels which shares a liquid feeding device and in which separation columns are respectively provided. The method for controlling a liquid chromatograph includes controlling the liquid chromatograph such that, in a process of replacing the separation columns, among steps after a separation column is connected to the flow channel, a step not using the liquid feeding device is performed in parallel with a process using a flow channel not targeted for separation column replacement or is performed so as not to overlap the process, and a step using the liquid feeding device is performed so as not to overlap the process using the flow channel not targeted for the separation column replacement.

Dependencies are inferred from the claim text.