Control system and program for liquid chromatograph

Abstract

The present invention aims at reducing the time required for a series of analyses in the sequential performance of gradient analyses under a variety of conditions. To this end, in a control apparatus for controlling the operation of a liquid chromatograph having a gradient analysis function in which a mobile phase composed of a plurality of mixed solvents is used and a chromatograph analysis is performed while the mixture ratio of the solvents is temporally changed, the liquid chromatograph is controlled so as to continuously change the mixture ratio of the solvents from an initial mixture ratio to a final mixture ratio when performing a sample analysis; and as to perform, before the sample analysis, a preparatory liquid supply in which the mixture ratio of the solvents is continuously changed from the initial mixture ratio to the final mixture ratio at a rate higher than that in the sample analysis.

Description

Technical field

[0001] The present invention relates to a control device for controlling the operation of a liquid chromatograph and a program used in the control device. Background technique

[0002] The liquid chromatograph is composed of multiple units such as autosampler, pump, and column oven. The operation of each unit is controlled by the control signal from the control device.

[0003] In recent years, in order to collectively control the analysis unit and process the collected data, in such a liquid chromatograph, a personal computer having a control / output program installed is widely used as a control device. In such a control device, a schedule is generated before starting analysis so that multiple samples can be continuously analyzed, or other types of analysis can be automatically performed (for example, see JP-A 2005-127814).

[0004] Figure 15 An example of a schedule for liquid chromatograph analysis is displayed. In this chart, each row corresponds to an analysis....

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