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Control method and device of quaternary low-pressure gradient pump

A low-pressure gradient and control method technology, applied in measurement devices, separation methods, chemical instruments and methods, etc., can solve the problems of poor proportional accuracy and mixing effect of quaternary low-pressure gradient pumps, and achieve poor proportional accuracy and mixing effect. , the mobile phase distribution is dense and uniform, the effect of improving the proportion accuracy and mixing effect

Active Publication Date: 2020-12-22
山东悟空仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a control method and device for a quaternary low-pressure gradient pump, so as to alleviate the technical problems of the existing quaternary low-pressure gradient pumps with poor proportional accuracy and mixing effect

Method used

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  • Control method and device of quaternary low-pressure gradient pump
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  • Control method and device of quaternary low-pressure gradient pump

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Embodiment 1

[0032]According to an embodiment of the present invention, an embodiment of a method for controlling a quaternary low-pressure gradient pump is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be implemented in a computer system such as a set of computer-executable instructions. Execution, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than here.

[0033]figure 1 It is a flow chart of a control method of a quaternary low pressure gradient pump according to an embodiment of the present invention, such asfigure 1 As shown, the method includes the following steps:

[0034]Step S102: Determine the mobile phase mode of the quaternary low pressure gradient pump based on the number of mobile phases to be mixed;

[0035]It should be noted that the mobile phase modes of the quaternary low pressure gradient pump include: a first mobile phase mode and a second mob...

Embodiment 2

[0072]The embodiment of the present invention also provides a control device for a quaternary low-pressure gradient pump. The control device of the quaternary low-pressure gradient pump is used to implement the control method of the quaternary low-pressure gradient pump provided in the above-mentioned embodiments of the present invention. The following is A specific introduction to the control device of the quaternary low pressure gradient pump provided by the embodiment of the present invention.

[0073]Such asFigure 4As shown,Figure 4It is a schematic diagram of the control device of the above-mentioned quaternary low-pressure gradient pump. The control device of the quaternary low-pressure gradient pump includes: a first determination unit 10, a correction unit 20, a second determination unit 30, and a control unit 40, wherein,

[0074]The first determining unit 10 is configured to determine the mobile phase mode of the quaternary low pressure gradient pump based on the number of mobil...

Embodiment 3

[0085]The embodiment of the present invention also provides a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium, and the computer program executes the steps of the method described in the first embodiment when the computer program is run by a processor.

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Abstract

The invention provides a control method and device for a quaternary low-pressure gradient pump, belonging to the technical field of equipment control. The method comprises the following steps: determining a mobile phase mode of the quaternary low-pressure gradient pump based on the number of to-be-mixed mobile phases; based on the mobile phase mode, correcting the liquid suction proportion of eachliquid absorption period of the quaternary low-pressure gradient pump to obtain a corrected liquid suction proportion; determining an arrangement sequence of a plurality of liquid suction periods based on the mobile phase mode; and controlling the liquid of the quaternary low-pressure gradient pump to work according to the corrected liquid suction proportion and the arrangement sequence of the liquid suction periods. Thus, the technical problems of poor proportion precision and poor mixing effect of an existing quaternary low-pressure gradient pump are solved.

Description

Technical field[0001]The invention relates to the technical field of equipment control, in particular to a control method and device of a four-element low-pressure gradient pump.Background technique[0002]High performance liquid chromatography is an important branch of chromatography. It uses liquid as the mobile phase and uses a high-pressure infusion system to connect single solvents with different polarities or mixed solvents and buffers in different proportions to the test sample. A chromatographic column equipped with a stationary phase. After the components of the sample to be tested are separated in the chromatographic column, they enter the corresponding detector for detection, so as to realize the qualitative and quantitative analysis of the sample. It is widely used in food safety, environment, pharmaceutical, scientific research and other fields. The main components of high performance liquid chromatograph include: high pressure infusion pump, sampler, chromatographic colu...

Claims

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Application Information

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IPC IPC(8): B01D15/10G01N30/34
CPCB01D15/10G01N30/34
Inventor 罗阁程子健郑显应
Owner 山东悟空仪器有限公司
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