Patent CA538186A successfully refreshed from Google Patents.
EP0161690A2
Expired / Lapsed
EP
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Ion selective electrode pair and method of manufacturing the same
Assignee: Fujifilm Holdings Corp
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Filing: 1985-05-17
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Granted: —
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Expires: 2005-05-17
Abstract
Abstract A conductive layer is formed on an insulating base, and at least one groove is formed in the conductive layer by cutting a part of the material of the conductive layer so that the conductive layer is divided into at least a pair of portions electrically isolated from each other by the cut groove. Thereafter, an ion selective layer is formed on the conductive layer to cover substantially the entire surface of the conductive layer including the cut groove.
Inventors
- 👤 Sadao Yamada
- 👤 Takeshi Takayama
- 👤 Osamu Seshimoto
- 👤 Akira Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 16:35
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335; G01N27/307; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0304
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
63 words
An ion selective electrode pair comprising a conductive layer and an ion selective layer formed on an insulating base in this order characterized in that said conductive layer is divided into at least two portions electrically isolated from each other by at least one cut groove formed by mechanically cutting and removing at least a part of the material of the conductive layer.
Claim 2
Dependent Claim
63 words
An ion selective electrode pair comprising a conductive layer and an ion selective layer formed on an insulating base in this order characterized in that said conductive layer is divided into at least two portions electrically isolated from each other by at least one cut groove formed by mechanically cutting and removing at least a part of the material of the conductive layer.
Claim 3
Dependent Claim
29 words
An ion selective electrode pair as defined in Claim 1 in which said conductive layer is composed of at least one of conductive metals, conductive metal oxides and graphite.
Claim 4
Dependent Claim
44 words
An ion selective electrode pair as defined in Claim 2 in which said conductive layer comprises a conductive metal and a layer of water-insoluble salt of the conductive metal forming the conductive layer is formed between the conductive layer and the ion selective layer.
Claim 5
Dependent Claim
36 words
An ion selective electrode pair as defined in Claim 2 in which a redox couple layer containing at least two kinds of redox couple salts is formed between the conductive layer and the ion selective layer.
Claim 6
Dependent Claim
79 words
An ion selective electrode pair as defined in Claim 2 in which said conductive layer comprises a conductive metal and a layer of water-insoluble salt of the conductive metal forming the conductive layer and a layer of water-soluble salt having an anion in common with the water-insoluble salt are formed between the conductive layer and the ion selective layer, the layer of water-insoluble salt and the layer of water-soluble salt being superposed on the conductive layer in this order.
Claim 7
Dependent Claim
30 words
An ion selective electrode pair as defined in Claim 1 in which said conductive layer comprises a redox couple containing at least two kinds of redox couple salts, and graphite.
Claim 8
Dependent Claim
26 words
An ion selective electrode pair as defined in Claim 3 in which said conductive layer comprises silver and said layer of water-insoluble salt comprises silver halide.
Claim 9
Dependent Claim
50 words
An ion selective electrode pair as defined in Claim 1, 2, 3, 4, 5, 6 or 7 in which at least one of said two portions of the conductive layer has an area exhibiting a certain potential when a sample liquid is brought into contact with the ion selective layer.
Claim 10
Independent Claim
76 words
A method of manufacturing an ion selective electrode pair by forming a conductive layer and an ion selective layer on an insulating base in this order characterized by a step of dividing said conductive layer into at least two portions electrically isolated from each other by forming a cut groove by cutting and removing at least a part of the material of the conductive layer before said ion selective layer is formed on the conductive layer.
Claim 11
Independent Claim
76 words
A method of manufacturing an ion selective electrode pair by forming a conductive layer and an ion selective layer on an insulating base in this order characterized by a step of dividing said conductive layer into at least two portions electrically isolated from each other by forming a cut groove by cutting and removing at least a part of the material of the conductive layer before said ion selective layer is formed on the conductive layer.
Claim 12
Dependent Claim
24 words
A method as defined in Claim 9 in which said conductive layer comprises at least one of conductive metals, conductive metal oxides and graphite.
Claim 13
Dependent Claim
45 words
ll. A method as defined in Claim 9 in which said conductive layer is formed of a conductive metal and said cut groove is formed after a layer of water-insoluble salt of the conductive metal forming the conductive layer is formed on the conductive layer.
Claim 14
Dependent Claim
34 words
A method as defined in Claim 9 in which said cut groove is formed after a redox couple layer containing at least two kinds of redox couple salts is formed on the conductive layer.
Claim 15
Dependent Claim
66 words
A method as defined in Claim 9 in which said conductive layer comprises a conductive metal and said cut groove is formed after a layer of water-insoluble salt of the conductive metal forming the conductive layer is formed on the conductive layer and a layer of water-soluble salt having an anion in common with the water-insoluble salt is formed on the layer of the water-insoluble salt.
Claim 16
Dependent Claim
27 words
A method as defined in Claim 9 in which said conductive layer comprises graphite and a redox couple containing at least two kinds of redox couple salts.
Claim 17
Dependent Claim
23 words
A method as defined in Claim 9 in which said conductive layer comprises silver and said layer of water-insoluble salt comprises silver halide.
Claim 18
Dependent Claim
22 words
A method as defined in Claim 9 in which said layer of silver halide is formed through oxidative-halogenation of the silver layer.
Claim 19
Dependent Claim
42 words
A method as defined in Claim 9 in which said conductive layer comprises silver and said ion selective layer is formed after formation of a silver halide layer through oxidative-halogenation of the silver layer which is effected after formation said cut groove.
Claim 20
Dependent Claim
40 words
A method as defined in Claim 9 in which at least one of said two portions of the conductive layer has an area exhibiting a certain potential when a sample liquid is brought into contact with the ion selective layer.
Claim 21
Dependent Claim
62 words
An ion selective electrode comprising a conductive layer and an ion selective layer formed on an insulating base in this order characterized in that said conductive layer is divided into at least two portions electrically isolated from each other by at least one cut groove formed by mechanically cutting and removing at least a part of the material of the conductive layer.
Claim 22
Dependent Claim
62 words
An ion selective electrode comprising a conductive layer and an ion selective layer formed on an insulating base in this order characterized in that said conductive layer is divided into at least two portions electrically isolated from each other by at least one cut groove formed by mechanically cutting and removing at least a part of the material of the conductive layer.
Claim 23
Dependent Claim
28 words
An ion selective electrode as defined in Claim 19 in which said conductive layer is composed of at least one of conductive metals, conductive metal oxides and graphite.
Claim 24
Dependent Claim
43 words
An ion selective electrode as defined in Claim 20 in which said conductive layer comprises a conductive metal and a layer of water-insoluble salt of the conductive metal forming the conductive layer is formed between the conductive layer and the ion selective layer.
Claim 25
Dependent Claim
78 words
An ion selective electrode as defined in Claim 20 in which said conductive layer comprises a conductive metal and a layer of water-insoluble salt of the conductive metal forming the conductive layer and a layer of water-soluble salt having an anion in common with the water-insoluble salt are formed between the conductive layer and the ion selective layer, the layer of water-insoluble salt and the layer of water-soluble salt being superposed on the conductive layer in this order.
Claim 26
Dependent Claim
25 words
An ion selective electrode as defined in Claim 21 in which said conductive layer comprises silver and said layer of water-insoluble salt comprises silver halide.
Claim 27
Dependent Claim
47 words
An ion selective electrode as defined in Claim 19, 20, 21, 22 or 23 in which at least one of said two portions of the conductive layer has an area exhibiting a certain potential when a sample liquid is brought into contact with the ion selective layer.
References Cited (Backward Citations)
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