Biological sensor and testing method therewith

A technology of a biosensor and a measurement method, which is applied in the field of biosensors and the measurement using the biosensor, can solve the problems of inability to perform simultaneous measurement, inability to measure, and decrease in measurement accuracy.
CN1490619AInactive Publication Date: 2004-04-21PANASONIC CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PANASONIC CORP
Publication Date
2004-04-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

A biosensor capable of measuring the concentration of one or more specific substances in one or more sample solutions almost simultaneously is provided. The biosensor comprises a plurality of sensor units, and each of the sensor units comprises an electrode system including a working electrode and a counter electrode on an insulating base plate and a reagent system including an oxidoreductase and an electron mediator. The biosensor is so configured that sample solutions supplied to the respective sensor units reach the respective reagent systems at different times. Specifically, each of the sensor units has a controlling system between a sample supply inlet and the reagent system, and the controlling system controls the time it takes for the sample solution to reach the reagent system from the sample supply inlet.
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Description

technical field

[0001] The present invention relates to a biosensor for measuring the concentration of a specific substance that can be contained in a sample solution and a measurement method using the biosensor. Background technique

[0002] Conventionally, as a biosensor for simultaneously measuring the concentration of a plurality of specific substances, there is a flow injection type biosensor. As an example, in a biosensor using an immobilized enzyme membrane and an electrode reaction, the operation of simultaneous measurement of glucose and L-lactic acid by a liquid injection analysis device (FIA) YSI MODEL 2700 SELECT (Yellow Spring Instrument Co., Inc) was carried out. illustrate. First, the tip of the sample solution pipette is dipped into the sample solution to draw the sample solution into the measurement system, and then the sample solution is supplied to the sample solution box serving as the measurement site. At this time, a certain amount of buffer solution ...

Claims

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