Biosensor
First Claim
1. A biosensor for quantifying a substrate contained in a sample liquid comprising:
- a first electrically insulated board and a second electrically insulated board;
an electrode system having at least a measuring electrode, a counter electrode, and a detecting electrode;
an analyte feed passage for introducing the sample liquid over said electrode system; and
a reagent used for quantifying the substrate contained in the sample liquid;
wherein said electrode system, said analyte feed passage, and said reagent exist between said first electrically insulated board and said second electrically insulated board;
wherein said electrode system is formed on one of all and part of an inner surface of at least one of said first electrically insulated board and said second electrically insulated board; and
wherein said detecting electrode is spaced from said measuring electrode by a distance sufficient for the sample liquid to sufficiently cover said measuring electrode before the sample liquid reaches said detecting electrode.
2 Assignments
0 Petitions
Accused Products
Abstract
In a biosensor that detects introduction of a sample liquid into an analyte feed passage using a detecting electrode, a means of improving accuracy of detection is provided. The biosensor has: an electrode system including measuring electrode (2), counter electrode (3), and detecting electrode (4) on first electrically insulated board (1); analyte feed passage (7) for introducing the sample liquid; and reagent layer (5) used for quantifying a substrate contained in the sample liquid. The means is characterized in that detecting electrode (4) is spaced from measuring electrode (2) by a distance sufficient for the sample liquid to sufficiently cover measuring electrode (2) before the sample liquid reaches detecting electrode (4).
71 Citations
10 Claims
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1. A biosensor for quantifying a substrate contained in a sample liquid comprising:
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a first electrically insulated board and a second electrically insulated board;
an electrode system having at least a measuring electrode, a counter electrode, and a detecting electrode;
an analyte feed passage for introducing the sample liquid over said electrode system; and
a reagent used for quantifying the substrate contained in the sample liquid;
wherein said electrode system, said analyte feed passage, and said reagent exist between said first electrically insulated board and said second electrically insulated board;
wherein said electrode system is formed on one of all and part of an inner surface of at least one of said first electrically insulated board and said second electrically insulated board; and
wherein said detecting electrode is spaced from said measuring electrode by a distance sufficient for the sample liquid to sufficiently cover said measuring electrode before the sample liquid reaches said detecting electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification