Dry strip element for the electrochemical detection of theophylline
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United States of America Patent
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Jun 23, 1992
Grant Date -
N/A
app pub date -
Sep 27, 1989
filing date -
Sep 28, 1988
priority date (Note) -
Expired
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Abstract
A dry strip element for use in an electrochemical assay for determining theophylline in a sample, the test element carrying a working electrode and a reference electrode and separately carrying at the working electrode an alkaline phosphatase and an electroinactive phosphate ester which is a substrate for the alkaline phosphatase and from which an electroactive compound can be released by catalytic activity of the alkaline phosphatase.
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