Method for determining the concentration of a substance in a liquid by measuring electrical current in a test strip
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United States of America Patent
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Feb 25, 2003
Grant Date -
N/A
app pub date -
Jul 27, 2000
filing date -
Aug 4, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In a method for determining the concentration of a substance in a liquid, especially for blood sugar determination, the investigated liquid is applied to the test field of a test strip (14) to be measured by way of electrical current and the resulting oxidation current in the test field is captured and evaluated. The timewise course of the oxidation current strength is captured during a calculated interval beginning with the application of the liquid, a first extreme value (34) of the current strength is compared with at least one threshold value, and an indication is produced depending on the result of the comparison.
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