Control device for liquid chromatograph and control method

A liquid chromatograph and control device technology, applied in the field of control devices, can solve problems such as complicated user setting operations, and achieve the effect of saving setting operations

Active Publication Date: 2015-05-20
SHIMADZU SEISAKUSHO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the method search described above, there is a problem that the setting work by the user is complicated when multiple gradient analyzes with different gradient profiles are performed.

Method used

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  • Control device for liquid chromatograph and control method
  • Control device for liquid chromatograph and control method
  • Control device for liquid chromatograph and control method

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Embodiment Construction

[0029] One embodiment of the control device for a liquid chromatograph according to the present invention will be described with reference to the drawings. figure 1 It is a schematic configuration diagram of a liquid chromatograph provided with the control device of this embodiment.

[0030] This liquid chromatograph includes: a liquid delivery unit 10, an automatic sampler 20, a column thermostat 30, a detection unit 40, a system controller 50 for controlling each of these units respectively, and the system controller 50 manages the analysis work or controls the detection unit. The control device 60 for analyzing and processing the data obtained in 40, the operation part 71 composed of a keyboard and mouse connected to the control device 60, the display part 72 composed of a monitor, etc.

[0031] The liquid-sending part 10 uses the gradient mixer 17 to transfer the liquid-sending pump P A The solvent A is pumped and pumped by the pump P B The pumped solvent B is mixed and...

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PUM

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Abstract

A liquid chromatograph control system for controlling an operation of a liquid chromatograph which uses a mobile phase composed of a mixture of solvents and which has the function of performing a gradient analysis while temporally changing the mixture ratio of the solvents. The system initially requests a user to set a basic gradient profile (Step S12), and subsequently, to set the number of steps to change the mixture ratio of the mobile phase at the beginning and / or at the end of the gradient process as well as the amount of change in the mixture ratio per step (Step S13). After that, based on the possible combinations of the mixture ratios of the mobile phase at the beginning and at the end of the gradient process computed from the contents of information entered in the previous steps, a plurality of gradient profiles corresponding to those combinations are created (Step S14).

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] A liquid chromatograph is composed of multiple units such as an auto sampler (Auto sampler), a pump, and a column thermostat, and the operation of each unit is controlled according to a control signal from a control device. [0003] In recent years, also in such liquid chromatographs, a control device in which a predetermined control / processing program is installed on a personal computer has been widely used to collectively control each analysis unit or process extracted data. In such a control device, continuous analysis of a plurality of samples can be automatically performed by creating a schedule before starting the analysis (for example, refer to Patent Document 1). [0004] Figure 7 It is an example of a schedule in liquid chromatography analysis. One line on this tabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/34G01N30/24
CPCG01N30/34G01N30/466
Inventor 大桥浩志山口忠行寺田英敏
Owner SHIMADZU SEISAKUSHO CO LTD
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