Electrode device with a solid state reference system
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United States of America Patent
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Oct 19, 2004
Grant Date -
Aug 26, 2004
app pub date -
Aug 29, 2002
filing date -
Mar 1, 2000
priority date (Note) -
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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.sup.+, Na.sup.+, K.sup.+ and Ca.sup.2+. 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.
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