Enzyme electrode
First Claim
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1. An enzyme electrode comprising:
- an insulative base;
at least two electrodes including a working electrode and a reference electrode provided on the surface of said insulative base and each having an exposed portion and a connecting portion, the area of the exposed portion of the reference electrode being larger than that of the exposed portion of the working electrode;
an insulative protection film covering the portions excluding said exposed portions and connecting portions of said electrodes; and
an immobilized enzyme film which covers integrally at least the exposed portions of said working electrode.
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Accused Products
Abstract
An enzyme electrode comprising: an insulative base plate; two or more electrodes formed on the surface of the insulative base plate and each having an exposed portion; an insulative protection film to insulate and protect the electrodes excluding at least those exposed portions; and an immobilized enzyme film to integratedly cover the exposed portions.
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Citations
20 Claims
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1. An enzyme electrode comprising:
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an insulative base; at least two electrodes including a working electrode and a reference electrode provided on the surface of said insulative base and each having an exposed portion and a connecting portion, the area of the exposed portion of the reference electrode being larger than that of the exposed portion of the working electrode; an insulative protection film covering the portions excluding said exposed portions and connecting portions of said electrodes; and an immobilized enzyme film which covers integrally at least the exposed portions of said working electrode. - View Dependent Claims (2, 3, 5, 6, 7, 8, 9, 10)
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4. An enzyme electrode according to claim 4, wherein the electrodes are respectively formed on at least two surfaces of said insulative base.
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11. A combination enzyme electrode, comprising:
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a pair of insulative bases; a working electrode provided on the surface of one of said insulative bases and a reference electrode provided on the surface of the other of said insulative bases, each of said working electrode and said reference electrode having an exposed portion and a connecting portion, the area of the exposed portion of said reference electrode being larger than that of the exposed portion of said working electrode; insulative protection films covering the portions of said insulative bases excluding said exposed portions and connecting portions of said electrodes; and an immobilized enzyme film which integrally covers the exposed portion of said working electrode. - View Dependent Claims (12, 13)
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14. An enzyme electrode comprising:
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an insulative base plate; two or more electrodes provided on the surface of said insulative base plate and each having an exposed portion; an insulative protection film insulating and protecting said electrodes except for said exposed portions; and an immobilized enzyme film which integrally covers said exposed portion of at least one of said electrodes, said immobilized enzyme film comprising a first protective film formed on the portion including said exposed portion for preventing said electrode from sensing interfering materials, an enzyme film, and a second protective film for covering said enzyme film, said enzyme film being sandwiched between said first and second protective films. - View Dependent Claims (15, 16, 17)
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18. An enzyme electrode comprising:
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an insulative base plate; an electrode provided on the surface of said insulative base plate and having an exposed portion; an insulative protection film which insulates and protects said electrodes except for said exposed portion; and an immobilized enzyme film which integrally covers said exposed portion of at least one of said electrodes, said immobilized enzyme film comprising a first protective film formed on the portion including said exposed portion for preventing said electrode from sensing interfering materials, an enzyme film, and a second protective film for covering said enzyme film, said enzyme film being sandwiched between said first and second protective films. - View Dependent Claims (19, 20)
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Specification