Ion sensor and method of manufacturing same
First Claim
1. An ion sensor comprisinga tube having an inner diameter of less than 3.0 mm and at least one open end,an ion-sensitive substrate having two ends, said substrate, exclusive of the said two ends, being coated with an insulator and provided within said tube at a position recessed from the open end of the tube;
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Accused Products
Abstract
Disclosed is an ion sensor having an ion-sensitive substrate provided within a tube at a position recessed from an open end of the tube and having an ion carrier membrane, which is selectively permeable to an ion of interest, filling the space between the opening of the tube and the surface of the ion-sensitive substrate on the open-end side of the tube. A method of manufacturing the ion sensor includes steps of inserting and retaining the ion-sensitive substrate in the tube, filling the space between the ion-sensitive substrate and the tube with a sol-like ion carrier membrane composition, and gelling the sol-like ion carrier membrane composition.
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Citations
26 Claims
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1. An ion sensor comprising
a tube having an inner diameter of less than 3.0 mm and at least one open end, an ion-sensitive substrate having two ends, said substrate, exclusive of the said two ends, being coated with an insulator and provided within said tube at a position recessed from the open end of the tube; - and
an ion carrier membrane selectively sensitive to an ion of interest, said ion carrier membrane filling a space between said open end of said tube and a surface of said ion-sensitive substrate on said open-end side of said tube. - View Dependent Claims (2, 3, 4)
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5. An ion sensor manufacturing method comprising the steps of:
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inserting and retaining an ion-sensitive substrate in a tube having a predetermined inner diameter allowing insertion of the ion-sensitive substrate, with said substrate occupying a position within the tube where a distal end of said substrate is recessed a prescribed distance from a distal end of the tube by the thickness of a spacer; filling a space between the ion-sensitive substrate and the tube, inclusive of a space between the distal end of the ion-sensitive substrate and the distal end of the tube, with a sol-like ion carrier membrane composition containing an ion carrier and a paste resin; and gelling the sol-like ion carrier membrane composition filling said spaces. - View Dependent Claims (6)
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7. A method of manufacturing an ion sensor comprising the steps of:
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inserting and retaining an ion-sensitive substrate having two ends, wherein said substrate exclusive of the two ends is coated with an insulator, in a tube having a predetermined inner diameter allowing insertion of the ion-sensitive substrate, with said substrate occupying a position within the tube from a distal end thereof; filling a space between the ion sensitive substrate and the tube, inclusive of a space between the distal end of the ion-sensitive substrate and the distal end of the tube, with a sol-like ion carrier membrane composition containing an ion carrier and a paste resin; and gelling the sol-like ion carrier membrane composition filling said spaces. - View Dependent Claims (8)
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9. An ion sensor comprising:
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a tube having at least one open end, an ion-sensitive substrate provided within said tube at a position recessed from the open end of said tube; and an ion carrier membrane comprising a polymer containing a paste resin of polyvinyl chloride group, benzo-15-crown, dioctylsebacate, and nitrobenzene, said ion carrier membrane filling a space between said open end of said tube and a surface of said ion-sensitive substrate on said open-end side of said tube. - View Dependent Claims (10, 11, 12)
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13. An ion sensor manufacturing method comprising the steps of:
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inserting and retaining an ion-sensitive substrate in a tube having a predetermined inner diameter allowing insertion of the ion-sensitive substrate, with said substrate occupying a position within the tube where a distal end of said substrate is recessed within the tube from a distal end thereof; filling a space between the ion-sensitive substrate and the tube, inclusive of a space between the distal end of the ion-sensitive substrate and the distal end of the tube, with a sol-like ion carrier membrane composition containing an ion carrier and a paste resin; gelling the sol-like ion carrier membrane composition filling said spaces; and cutting off the distal end of the tube filled with the gelled ion carrier membrane in such a manner that the distal end of the tube is a prescribed distance from the distal end of the ion-sensitive substrate. - View Dependent Claims (14)
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15. An ion sensor comprising:
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a tube having at least one open end, an ion-sensitive substrate provided within said tube at a position recessed from the open end of said tube; and an ion carrier membrane comprising a polymer containing a paste resin of polyvinyl chloride group, bis(benzo-15-crown) and dioctylsebacate, said ion carrier membrane filling a space between said open end of said tube and a surface of said ion-sensitive substrate on said open-end side of said tube. - View Dependent Claims (16, 17, 18)
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19. An ion sensor comprising:
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a tube having at least one open end, an ion-sensitive substrate provided within said tube at a position recessed from the open end of said tube; and an ion carrier membrane comprising a polymer containing a paste resin of polyvinyl chloride group, bis((12-crown-4) methyl)methyldodecyl malonate and dioctylsebacate, said ion carrier membrane filling a space between said open end of said tube and a surface of said ion-sensitive substrate on said open-end side of said tube. - View Dependent Claims (20, 21, 22)
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23. An ion sensor comprising:
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a tube having at least one open end, an ion-sensitive substrate provided within said tube at a position recessed from the open end of said tube; and an ion carrier membrane comprising a polymer containing a paste resin of polyvinyl chloride group, valinomycin, dioctylsebacate, and o-nitrophenyloctyl ether, said ion carrier membrane filling a space between said open end of said tube and a surface of said ion-sensitive substrate on said open-end side of said tube. - View Dependent Claims (24, 25, 26)
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Specification