Measurement method using oxidase

Patent metadata

Field	Value
Publication number	US-9702844-B2
Application number	US-201514963363-A
Country	US
Kind code	B2
Filing date	Dec 9, 2015
Priority date	Oct 22, 2010
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A method for measuring a target object in a sample by using an oxidase, wherein the influence of dissolved oxygen in the sample can be corrected, is provided. The method comprises: obtaining measurement values by causing the target object in the sample to react with the oxidase under different conditions of two or more types; and performing a correction based on the obtained two or more measurement values and a correction method preliminarily set so as to correct the influence of dissolved oxygen in the sample.

First claim

What is claimed is:

1. A measurement device comprising:
a sensor section for obtaining measurement information resulting from reactions between a target object in a sample and an oxidase under two or more different types of conditions;
a memory section for storing a correction method, where the correction method corrects for the influence of dissolved oxygen in the sample on the obtained measurement information;
an arithmetic section for selecting the correction method stored in the memory section based on the measurement information obtained by the sensor section, and calculating a corrected value of the measurement information by the correction method;
and a display section for displaying the corrected value.

2. The measurement device according to claim 1 , wherein the target object is selected from the group consisting of glucose, lactic acid, bilirubin, cholesterol and ascorbic acid.

3. The measurement device according to claim 1 , wherein the target object is glucose.

4. The measurement device according to claim 1 , wherein the oxidase is selected from the group consisting of glucose oxidase, lactate oxidase, bilirubin oxidase, cholesterol oxidase, ascorbic acid oxidase, uric acid oxidase, peroxidase, sulfurous acid oxidase, amine oxidase, lysyl oxidase, lysine oxidase, amino acid oxidase, diamine oxidase, pyridoxine phosphate oxidase, protein-lysine 6-oxidase, acyl-CoA oxidase, alcohol oxidase, choline oxidase, pyruvic acid oxidase, sarcosine oxidase, tyramine oxidase and glycerophosphate oxidase.

5. The measurement device according to claim 1 , wherein the oxidase is glucose oxidase.

Assignees

• Arkray Inc

Inventors

• Kaneda Hisashi

Classifications

• C12Q1/006

  for glucose · CPC title

• C12Q1/005

  involving specific analytes or enzymes (including groups of enzymes, e.g. oxydases; C12Q1/004 takes precedence) · CPC title

• G01N27/3274 Primary

  Corrective measures, e.g. error detection, compensation for temperature or hematocrit, calibration (coding of calibration information G01N33/48771) · CPC title

• C12Q1/26

  involving oxidoreductase · CPC title