Patent EP0186210A2 successfully refreshed from Google Patents.
EP0186210A2
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Ion sensor
Assignee: Terumo Corp
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Filing: 1985-12-27
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Granted: —
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Expires: 2005-12-27
Abstract
Abstract An ion sensor of the type wherein specific type of ion in an aquious solution is measured by potential response. The sensor includes a conductor base (11), and a reversible redox polymer film (13) formed directly on a surface of said conductor base. An ion carrier film (13) is formed directly on a surface of said redox polymer film. The carrier film (13) contains an ion carrier substance for allowing the specific type of ions to permeate from the aqueous solution to said polymer film.
Inventors
- 👤 Shuichiro Yamaguchi
- 👤 Norihiko Ushizawa
- 👤 Takeshi Shimomura
- 👤 Noboru Oyama
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 07:36
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
77 words
An ion sensor of the type wherein a specific type of ion in an aqueous solution is measured by potential response, comprising: a conductor base; a reversible redox polymer film formed directly on a surface of said conductor base; and an ion carrier film formed directly on a surface of said redox polymer film and containing an ion carrier substance for allowing the specific type of ions to permeate from the aqueous solution to said polymer film.
Claim 2
Dependent Claim
77 words
An ion sensor of the type wherein a specific type of ion in an aqueous solution is measured by potential response, comprising: a conductor base; a reversible redox polymer film formed directly on a surface of said conductor base; and an ion carrier film formed directly on a surface of said redox polymer film and containing an ion carrier substance for allowing the specific type of ions to permeate from the aqueous solution to said polymer film.
Claim 3
Dependent Claim
25 words
An ion sensor, according to claim 1, characterized in that said redox polymer film is capable of performing a reversible oxidation/reduction reaction of quinone-hydroquinone type.
Claim 4
Dependent Claim
82 words
An ion sensor according to claim 2, characterized in that said redox polymer film is formed by electrooxidation polymerization of at least one first compound selected from the group consisting of phenol, 3,5-, 2,6- and 3,4-xylenols, 2-hydroxy pyridine, o- and m-benzyl alcohols, o-, m- and p-hydroxybenzaldehydes, o-,m-and p-hydroxyacetophenones, o-, m- and p-hydroxypropiophenones, o-, m- and p-benzophenols, o-, m- and p-hydroxybenzophenones, o-, m- and p-carboxyphenols, diphenylphenol, 2-methyl-8-hydroxyquinoline, 5-hydroxy-1,4-naphthoquinone, 4-(p-hydroxyphenyl)-2-butanone, 1,5-dihydroxy-1,2,3,4-tetrahydronaphthalene, bisphenol A, salicylanilide, 5- and 8-hydroxyquinolines, 1,8-dihydroxyanthraquinones, 1,2,5,8-tetrahydroxyquinalizarin, 1-amino-4-hydroxyanthraquinone, 1-aminoanthraquinone, purpurin, and anthrarufin.
Claim 5
Dependent Claim
25 words
An ion sensor according to claim 1, characterized in that said redox polymer film is capable of performing a reversible oxidation/reduction reaction of amine-quinoid type.
Claim 6
Dependent Claim
52 words
An ion sensor according to claim 4, characterterized in that said redox polymer film is formed by electrooxidation polymerization of at least one second compound selected from the group consisting of aniline, 1-aminopyrene, 1,2-, 1,6- and 1,8-diaminopyrenes, 1-aminochrysene, 1,4-diaminochrysene, 1- and 9-aminophenanthrenes, 9,10-diaminophenanthrenes, 1-aminoanthraquinone, p-phenoxyaniline, o-phenylenediamine, p-chloroaniline, 3,5-dichloroaniline, 2,4,6-trichloroaniline, N-phenyl-p-phenylenediamine, and N-methylaniline.
Claim 7
Dependent Claim
37 words
An ion sensor according to claim 1, characterized in that said redox polymer film contains at least one electrolyte selected from the group consisting of, dipotassiumhydrogenphosphate, sodium perchlorate, sulfuric acid, sulfates, tetrafluoroborate, tetraphenylborate, phosphates and phosphoric acid.
Claim 8
Dependent Claim
20 words
An ion sensor according to claim 1, characterized in that said ion carrier substance is a hydrogen ion carrier substance.
Claim 9
Dependent Claim
76 words
An ion sensor according to claim 7, characterized in that said hydrogen ion carrier substance is at least one member selected from the group consisting of amines represented by: (wherein each of R 1 1 R 2 and R 3 is an alkyl group, at least two of which are alkyl groups having 8 to 18 carbon atoms), and pyridine derivatives represented by: (wherein R 4 is an alkyl group having 8 to 18 carbon atoms).
Claim 10
Dependent Claim
20 words
An ion sensor according to claim 1, characterized .in that said ion carrier substance is a potassium ion carrier substance.
Claim 11
Dependent Claim
34 words
An ion sensor according to claim 9, characterized in that said potassium ion carrier substance is at least one member selected from the group consisting of valinomycin, bis(15-crown-5), nonactin, monactin, and crown ether compounds.
Claim 12
Dependent Claim
20 words
An ion sensor according to claim 1, characterized in that said ion carrier substance is a sodium ion carrier substance.
Claim 13
Dependent Claim
42 words
An ion sensor according to claim 11, characterized in that said sodium ion carrier substance is at least one member selected from the group consisting of bis[(12-crown-4)methyl]dodecylmalonate, N,N,N,N-tetrapropyl-3,6-dioxanate-diamide, 3-methoxy-N,N,N,N-tetrapropyl-1,2-phenylenedioxydiacetoamide, (-)-(R,R) - 4,5-dimethyl-N,N,N,N-tetrapropyl-3,6-dioxaoctanediamide, 4-methyl-N,N,N,N-tetrapropyl-3,6-dioxaoctanediamide, N,N,N,N-tetrapropyl-1,2-phenylenedioxydiacetoamide, N,N,N,N-tetrapropyl-2,3-naphtharenedioxydiacetoamide, 4-t-butyl-N,N,N,N-tetrapropyl-1,2-cyclohexanedioxydiaceto amide, 4-t-butyl-N,N'-di[(11-ethoxycarbonyl)undecyl]-N,N'-dimethyl-1,2-cyclohexanedioxydiacetoamide, cis-N,N,N,N-tetrapropyl-1,2-cyclohexanedioxydiacetoamide, and trans-N,N,N,N-tetrapropyl-1,2-cyclohexanedioxydi- acetoamide.
Claim 14
Dependent Claim
20 words
An ion sensor according to claim 1, characterized in that said ion carrier substance is a calcium ion carrier substance.
Claim 15
Dependent Claim
33 words
An ion sensor according to claim 13, characterized in that said calcium ion carrier substance is at least one member selected from the group consisting of calcium-bis-[di-(n-octylphenyl)phosphate], (-)-(R,R)-N,N'-bis[(ll-ethoxycarbonyl)undecyl]-N,N'-4,5-tetramethyl -3,6-dioxaoctanediamide, and calcium bis[di(n-decyl) phosphate].
Claim 16
Dependent Claim
20 words
An ion sensor according to claim 1, characterized in that said ion carrier substance is a chlorine ion carrier substance.
Claim 17
Dependent Claim
82 words
An ion sensor according to claim 15, characterized in that said chlorine ion carrier substance is at least one member selected from the group consisting of quaternary ammonium salts represented by the general formula: (wherein each of R 5 , R 6 , R 7 and R 8 is independently an alkyl group having 6 to 18 carbon atoms, and at least one of R 5 to R 8 can contain a hydrogen atom or a methyl group), and triphenyl tin chloride.
Claim 18
Dependent Claim
46 words
An ion sensor according to claim 1, characterized in that said ion carrier substance contains at least one electrolyte selected from the group consisting of sodium tetrakis(p-chlorophenyl)borate, and potassium- tetrakis(p-chlorophenyl)borate; and compounds represented by General formulas: and (wherein each R 15 is independently an alkyl group).
Claim 19
Dependent Claim
38 words
An ion sensor according to claim 1, characterized in that said ion carrier film comprises a polymeric substance selected from the group consisting of polyvinyl chloride, a vinyl chloride-ethylene copolymer, polyester, polyacrylamide, cellulose-based substances, polyurethane, and silicone resin.
Claim 20
Dependent Claim
20 words
An ion sensor according to claim 18, characterized in that said polymeric substance is polyvinyl chloride in a paste form.
Claim 21
Dependent Claim
23 words
An ion sensor according to claim 1, characterized in that said redox polymer film has a thickness of 0.1 µm to 0.2 mm.
Claim 22
Dependent Claim
22 words
An ion sensor according to claim 1, characterized in that.said ion carrier film has a thickness of 50 µm to 10 mm.
Claim 23
Dependent Claim
99 words
An ion sensor according to claim 1, characterized in that said ion carrier substance is selected from the group consisting of a quaternary ammonium salt of the formula: where R 9 to R 11 are independently alkal groups having 8 to 18 carbon atoms and X - is Cℓ - , Br - or OH - ; a tertiary amine of the formula where R 12 is phenyl group, methyl group or hydrogen atom, R 13 is hydrogen atom or methyl group, and R 14 is hydrogen atom, methyl group or octadecyl group; and the compounds of formulas: and
References Cited (Backward Citations)
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