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Method and device for temperature control of a chromatograph

A temperature control method and technology of a temperature control device, which can be used in measurement devices, instruments, scientific instruments, etc., can solve problems such as time-consuming, and achieve the effect of wide application range and high efficiency

Active Publication Date: 2022-04-08
华谱科仪(北京)科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the setting of the parameters of the conventional PID algorithm mainly relies on the method of manual setting, which not only requires rich experience and skills, but also is very time-consuming.

Method used

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  • Method and device for temperature control of a chromatograph
  • Method and device for temperature control of a chromatograph
  • Method and device for temperature control of a chromatograph

Examples

Experimental program
Comparison scheme
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Embodiment

[0057] see figure 1 , a schematic diagram of an application scenario of a temperature control method for a chromatograph provided in this embodiment.

[0058] Such as figure 1 As shown, the chromatograph includes a carrier gas system 100, a separation system 200, a detection and recording system 300, a temperature control system 400, and a sample injection system 500. The temperature control method for a chromatograph provided by the present invention is applied to the temperature control of a chromatograph System 400, the temperature control system 400 includes a temperature sensor for temperature sampling and a heating module for raising the temperature of the device.

[0059] On the basis of the above, if figure 2 Shown, for the chromatograph temperature control method provided by the present invention, the method comprises:

[0060] Step S101, determine the heating interval according to the initial temperature and the target temperature.

[0061] The initial temperatu...

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Abstract

The invention provides a chromatograph temperature control method and device, which are applied to the temperature control system of the chromatograph. After temperature partitioning based on the target temperature, an algorithm with higher control efficiency is used for temperature control for different temperature partitions, which can be applied to temperature control of chromatographs of different types, different configurations, and different operating environments. It has a wide range of applications and does not require manual labor. Adjust the algorithm parameters, and gradually optimize with the continuous use of the equipment to form a temperature control algorithm that matches each equipment, and the temperature control is more efficient.

Description

technical field [0001] The invention relates to the technical field of temperature control of a chromatograph, in particular to a temperature control method and device for a chromatograph. Background technique [0002] A chromatograph refers to a device for chromatographic separation and analysis, including a sampling system, a detection system, a recording and data processing system, a temperature control system, and a mobile phase control system. In gas chromatography, temperature is the most important parameter. The temperature of the chromatograph will directly affect the effective separation of the target substance in the chromatographic column, the sensitivity and stability of the detector, etc. Therefore, it is particularly important to control the temperature of the chromatograph. PID control is often used in the temperature control algorithm of chromatograph because of its simple principle, convenient use, strong applicability and strong robustness. However, the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/30
CPCG01N30/30
Inventor 王东强何嘉辉
Owner 华谱科仪(北京)科技有限公司