Impedance test method applied to electrochemical test strip and electrochemical measurement system

Abstract

The invention discloses an impedance test method applied to an electrochemical test strip. The electrochemical test strip comprises at least two electrodes, when the electrochemical test strip is inserted into a tester, the two electrodes at least can form an electrode communication loop which is not communicated with a to-be-tested sample, and at least one sample communication loop communicated with the to-be-detected sample can be formed by the two electrodes; the method comprises the following steps: acquiring an impedance value of the electrode communication loop, and determining a correction coefficient of the electrochemical test strip according to the impedance value of the electrode communication loop and an impedance calibration value of the test strip; and obtaining an impedancevalue of the sample communication loop, and determining a target impedance value of the to-be-detected sample according to the impedance value of the sample communication loop, the correction coefficient and the impedance calibration value. Obviously, due to the fact that the electrode impedance value of the electrodes in the sample communication loop can be removed through the method, the influence of impedance difference generated in the printing process of the electrodes of the test strip on the sample test result can be avoided through the method.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an impedance testing method and an electrochemical measurement system applied to electrochemical test strips. Background technique [0002] At present, when using an electrochemical method to measure people's blood sugar content, the tester usually needs to drop the blood of the finger onto the sample area to be tested on the test strip, because the sample area to be tested is provided with related chemical substances, so when When blood is dropped onto the sample area to be tested, a corresponding impedance value is generated. During this process, since the sample area to be tested in the test strip and the electrodes in the test strip can form a connected electrical circuit, the blood sugar content of the tester can be obtained by measuring the impedance value of the electrical circuit. [0003] But, if according to the electrochemical measurement method in the prior a...

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Problems solved by technology

[0003] But, if according to the electrochemical measurement method in the prior art, can only calculate the blood sugar content of the tester by measuring the electric circuit that contains the sample area to be tested and the electrode, because the electrode in the test strip will If there is a difference, the above-mentioned blood glucose measurement method will introduce the impedance error of the test strip electrode into the tester's blood glucose measurement result, which will cause the tester's blood glucose test result to appear inaccurate and unreliable.

At present, there is no more effective solution to the above technical problems.

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