Electrode device with a solid state reference system
First Claim
1. An electrode device comprising an ion selective material, a solid state, inner reference system of a bronze and a contact material, where the reference system mediates the electrochemical correspondence between the ion selective material and the contact material, characterized inthat the reference system comprises sodium vanadium bronze, where the sodium is incorporated in the vanadium bronze at such a stoichiometric proportion that the insertion/liberation of sodium is reversible.
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Accused Products
Abstract
The invention concerns an electrode device comprising an ion selective material, a solid state, inner reference system of sodium vanadium bronze and a contact material, where sodium may be reversibly intercalated, in the bronze. Such an electrode device may for instance be sensitive to ions, such as H+, Na+, K+and Ca2+. It may also include a reactive material in which a particular analyte is reacted to form an ion product, to which the ion selective material is sensitive, such as in electrode devices of the Severinghaus-type or in biosensors. The electrode device according to the invention can be prepared by thick film printing.
32 Citations
26 Claims
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1. An electrode device comprising an ion selective material, a solid state, inner reference system of a bronze and a contact material, where the reference system mediates the electrochemical correspondence between the ion selective material and the contact material, characterized in
that the reference system comprises sodium vanadium bronze, where the sodium is incorporated in the vanadium bronze at such a stoichiometric proportion that the insertion/liberation of sodium is reversible.
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26. A method of preparing an electrode device comprising an ion selective material, a solid state, inner reference system of a bronze and a contact material, where the reference system mediates the electrochemical correspondence between the ion selective material and the contact material, comprising using a sodium vanadium bronze for the reference system in which the sodium is incorporated in the vanadium bronze at such a stoichiometric proportion that the insertion/liberation of sodium is reversible.
Specification