LIQUID CHROMATOGRAPH AND LIQUID CHROMATOGRAPH ANALYSIS METHOD

摘要

A liquid chromatograph analysis method and a liquid chromatograph minimize analysis time when performing analyses by switching columns and mobile phases. Liquid chromatograph 100 for performing a plurality of analyses according to a schedule table includes: mobile phase switching sections 15, 16 for switching a plurality of mobile phases to select a mobile phase to be used in analysis; column switching sections 31, 33 for switching a plurality of columns 32a-32f to select a column to be used in analysis; and control section 60 including memory 61 for storing an equilibration time of each of the plurality of columns 32a to 32f and an equilibration controller 66 for controlling column equilibration. If used columns or used mobile phases are different between two consecutively executed analyses, equilibration controller 66 equilibrates a column used in the later of the two analyses over an equilibration time read out from memory 61.

主权项

1. A liquid chromatograph analysis method in which a sample is analyzed using a liquid chromatograph provided with a function of switching a plurality of columns and a plurality of mobile phases, according to a schedule table in which analysis conditions and execution order of a plurality of analyses are described, the analysis method comprising the steps of:
a) storing an equilibration time of each of the plurality of columns in a memory; b) reading out, from the memory, an equilibration time of a column used in later one of two analyses consecutively executed in the schedule table, in a case where used columns or used mobile phases are different between the two analyses; and c) equilibrating the column used in the later analysis over the equilibration time read out from the memory, immediately before the later analysis is performed.