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Electrochemical analysis in-vitro diagnosis test strip and diagnosis tester

An electrochemical analysis and in vitro diagnostic technology, applied in the field of electrochemical analysis, can solve the problem that the background signal cannot accurately reflect the level of interference substances.

Inactive Publication Date: 2020-03-27
贾晓轻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the method in the prior art document 1 can only eliminate the interference signal of the interfering substance in the sample. In the prior art document 2, the background signal base value is pre-obtained from multiple samples. However, due to individual differences, the actual detection of Interferants are all different and their background signal may not accurately reflect the level of the interferent in the actual sample

Method used

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Embodiment Construction

[0027] The technical solutions of the present invention are clearly and completely described below, and obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. All publications, patents, and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication, patent, or patent application was specifically and individually indicated to be incorporated by reference.

[0028] The electrochemical analysis in vitro diagnostic test strip of the embodiment of the present invention includes: a substrate, a first electrode, a second electrode, a third electrode, a fourth electrode and a label. The test strip substrate is an insulating substrate on whi...

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Abstract

The invention discloses an electrochemical analysis in-vitro diagnosis test strip and a diagnosis tester. The contents of analytes such as glucose, urea, uric acid, lactic acid, choline, galactose, glutamic acid and polypeptide in a biological sample are detected through a current type biosensor, wherein an interference signal caused by an interferent in a blank electrode sample is set in the electrochemical analysis in-vitro diagnosis test strip, and a fourth electrode is used for correcting a current error caused by oxidation or reduction of an electron mediator, so that an in-vitro diagnosis result is more accurate.

Description

technical field [0001] The invention relates to the technical field of electrochemical analysis, in particular to an electrochemical analysis in vitro diagnostic test strip and a diagnostic tester. Background technique [0002] A sensor is a device that acquires and processes information. Biosensor is a special kind of sensor, which uses biologically active units (such as enzymes, antibodies, nucleic acids, cells, etc.) The measurable electrical signal that is proportional to the concentration of the target substance generated by the reaction is an analytical instrument that realizes the quantitative determination of the target substance. [0003] Electrochemical biosensor is an instrument that immobilizes enzyme as a molecular recognition element to the basic electrode and immerses it in the bottom liquid, and undergoes an enzyme-catalyzed chemical reaction with the substance to be detected. The signal in the reaction is converted into an electrical signal by the converte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/327
CPCG01N27/26G01N27/3274
Inventor 贾晓轻
Owner 贾晓轻