Method and device for correcting flow velocity set value error of ion chromatograph and computer readable storage medium

By correcting the error of the flow rate setting value of the ion chromatograph, the motor speed and compression coefficient are calculated and the flow rate is stabilized, and the problems of incomplete separation caused by the flow rate error and column damage are solved, and stable separation effect and detection accuracy are achieved.

CN120490365AActive Publication Date: 2025-08-15QINGDAO SHENGHAN CHROMATOGRAPH TECH CO LTD
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Patent Information

Application Number
CN202510758567.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-09
Publication Date
2025-08-15
Estimated Expiration
2045-06-09

AI Technical Summary

Technical Problem

During the detection process, the flow rate setting value of the ion chromatograph has a large error, resulting in incomplete separation of samples and overlapping peaks, affecting the accuracy of detection and possibly damaging the column.

Method used

By calculating the theoretical speed and actual speed of the motor, verifying the actual flow rate of the mobile phase, calculating the compression coefficient, adjusting the motor speed to stabilize the flow rate, and correcting the error of the flow rate set value.

Benefits of technology

It improves flow velocity stability, ensures the stability of sample separation effect, extends the service life of the chromatographic column, and improves the accuracy of the detection results and the consistency of experimental conditions.

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Abstract

The invention relates to the technical field of ion chromatographs, and provides a method for correcting an error of a flow velocity set value of an ion chromatograph, which comprises the following steps of: calculating the actual flow velocity of a mobile phase and the actual rotating speed of a motor according to the theoretical flow velocity of the mobile phase of the ion chromatograph and the actual rotating speed of the motor, and performing a verification process; and finally, calculating a compression coefficient under a certain pressure-multiplying condition, and adjusting the actual rotating speed of the motor according to the compression coefficient, so that the instantaneous flow velocity of the mobile phase at the outlet is equal to the set theoretical flow velocity, thereby completing the correction of the flow velocity set value error of the ion chromatograph. Therefore, the stability of the separation effect of the sample in the ion chromatograph can be ensured, and the accuracy of the detection result is improved. The invention further discloses a device for correcting the error of the flow velocity set value of the ion chromatograph and a computer readable storage medium.
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