Sheet type electrode for use in the measurement of ion concentrations
First Claim
1. In a sheet-configured electrode for use in the measurement of ion concentrations, the improvement comprising:
- a substrate of a non-conducting material defining a throughhole;
an electrode assembly having a glass electrode disposed side by side to a reference electrode, each electrode having a different internal construction from the other, the glass electrode being provided with an internal electrode portion directly aligned with said throughhole and a lead portion, said portions being adhered to a lower surface of the substrate, the lower surface being opposite a side of the substrate from which a sample is received by the sheet-configured electrode, anda support layer of non-conducting material formed over a portion of the electrode assembly while exposing the lead portion.
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Accused Products
Abstract
An improved electrode assembly of a modular configuration for sensing ion concentration includes a substrate mounted in a housing and being sandwiched by a first and second support layer of non-conductive material. A gelantinized solution is positioned in an opening between the first support layer and a substrate, while a second gelatinized solution is positioned in an opening between a second support layer and a substrate. Electric leads and electrodes are appropriately positioned on the substrate for operative contact with the respective gelatinized solutions. An ion-responsive member contacts one gelatinized solution, while an acqueous junction member extends through the respective support layers and substrates to contact another gelatinized solution.
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Citations
13 Claims
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1. In a sheet-configured electrode for use in the measurement of ion concentrations, the improvement comprising:
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a substrate of a non-conducting material defining a throughhole; an electrode assembly having a glass electrode disposed side by side to a reference electrode, each electrode having a different internal construction from the other, the glass electrode being provided with an internal electrode portion directly aligned with said throughhole and a lead portion, said portions being adhered to a lower surface of the substrate, the lower surface being opposite a side of the substrate from which a sample is received by the sheet-configured electrode, and a support layer of non-conducting material formed over a portion of the electrode assembly while exposing the lead portion. - View Dependent Claims (2, 3, 4)
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5. An improved structure for sensing ion-concentration comprising:
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a housing member; a substrate mounted in the housing member; a first support layer of a non-conductive material positioned directly over the substrate; a second support layer of a non-conductive material positioned below the substrate, the substrate, first support layer and second support layer having appropriately positioned openings to define a conduit among them; a first gelatinized solution communicating through openings between the first support layer and the substrate; a second gelatinized solution communicating through openings between the second support layer and the substrate; an ion-responsive membrane positioned across the first gelatinized solution and above the first support layer; means providing an electrical lead portion and an internal electrode portion on a bottom portion of the substrate for operative contact with the first and second gelatinized solutions, the lead portion extending outside of the housing, and an aqueous junction member extending through openings in the first support layer, second support layer, and the substrate. - View Dependent Claims (6, 7, 8, 9, 10)
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11. In an improved sheet-configured structure having an electrode assembly on a bottom surface of a substrate, said electrode assembly having a sensing electrode including an internal electrode portion and a lead portion, said structure receiving a sample from above a top surface of the substrate, the substrate having a throughhole therein, wherein the improvement comprises:
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said substrate having an end edge portion on which said lead portion is disposed, and also having a central portion; a first support layer directly interfacing said top surface such that said end edge portion remains exposed, said first support layer having a first throughhole therein for communication between said sample and said electrode assembly, said first throughhole being directly aligned with said substrate throughhole; and a second support layer directly interfacing said bottom surface and having a second throughhole therein such that said second support layer covers said central portion while leaving said end edge portion exposed. - View Dependent Claims (12, 13)
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Specification