Method for identifying sample type or fault type and biosensor device
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A biosensor, fault type technology, applied in the field of electrochemical detection, can solve the problems of inability to quickly identify electrode fault types, operation errors, misjudgment of results, etc.
Active Publication Date: 2020-10-23
JIANGSU YUYUE MEDICAL EQUIP&SUPPLY CO LTD +1
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[0006] The purpose of the present invention is to provide a method and a biosensor device for identifying the type of sample or failure type. The failure of t
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Embodiment 1
[0048] Embodiment 1: A method and biosensor device for identifying sample type or fault type
[0049] The target analyte in this embodiment is blood glucose, and the quality control solution is blood glucose quality control solution. Biosensor devices are blood glucose testers and blood glucose test strips, including:
[0050] A power module, used to apply a sinusoidal alternating voltage between the working electrode and the auxiliary electrode;
[0051] The impedance value acquisition module is used to measure the impedance value when a sinusoidal AC voltage is applied between the working electrode and the auxiliary electrode, and the impedance measurement module includes the working electrode and the auxiliary electrode.
[0052] A storage module for storing preset impedance threshold intervals; the storage module includes an impedance threshold interval acquisition unit and an impedance threshold interval storage unit, and the impedance threshold interval acquisition unit...
Embodiment 2
[0088] Embodiment 2: A method and biosensor device for identifying sample type or fault type
[0089] The target analyte in this embodiment is uric acid, and the quality control solution is uric acid quality control solution. The biosensor device is a uric acid tester and a uric acid test paper. The modules of the biosensor device in this embodiment are the same as those in Embodiment 1, and will not be repeated in this embodiment.
[0090] A method for identifying a sample type or a fault type. The difference between this embodiment and Embodiment 1 lies in the method for determining the impedance threshold interval.
[0091] The method to determine the blood sample threshold interval (C, D) is:
[0092] Make multiple blood samples with a uric acid concentration of 5.0mg / dL, select ten blood samples and adjust the hematocrit to 20%, measure the impedance value of each blood sample, the unit is ohm, and then calculate the average value of the impedance value of these ten bloo...
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Abstract
The invention discloses a method for identifying a sample type or a fault type and a biosensor device. The method is used for identifying whether a to-be-tested sample is a quality control solution ora blood sample or identifying a fault type of an electrode type blood detection device. The method comprises the following steps that 1, a sine alternating voltage is applied between a first electrode and a second electrode of the electrode type blood detection device, an alternating impedance value between the first electrode and the second electrode is measured, the amplitude of the sine alternating voltage is 0.1-0.3 V, and the frequency of the sine alternating voltage is 1000-3000 Hz; 2, the obtained impedance value is compared with a preset impedance threshold interval, and the impedancethreshold interval to which the impedance value belongs is determined; and 3, the type of the to-be-tested sample or the fault type is determined according to the threshold interval to which the impedance value belongs. The method is advantaged in that technical problems that an existing manual quality control liquid adjusting mode may cause misoperation, a fault of a detection device causes result misjudgment, and an electrode fault type cannot be quickly recognized in the prior art are solved.
Description
technical field [0001] The invention relates to the technical field of electrochemical detection, in particular to a method for identifying the type of a sample to be tested or identifying a fault type of an electrode-type blood detection device and a biosensor device. Background technique [0002] Quantitative determination of the concentration of important substances in human blood, such as blood sugar, blood ketones, blood lactic acid, cholesterol, uric acid, triglycerides and other substances, is very important for clinical diagnosis and health management. At present, electrode-type blood detection devices based on electrochemical biosensors are mainly used to measure the concentration of target analytes in blood. By modifying the biomolecules (such as enzymes) on the surface of the electrode to selectively recognize the target analyte in the blood, the biorecognition signal is converted into an electrical signal (oxidation or reduction current) that can be collected and...
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