GEL FORMATION TO REDUCE HEMATOCRIT SENSITIVITY IN ELECTROCHEMICAL TEST
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Dec 17, 2007
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Dec 22, 2006
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Abstract
Devices for determining the concentration of a constituent in a physiological sample that comprise gel matrices to filter red blood cells are provided. Examples of such devices include a biosensor comprising, on a support substrate, a sample reception region for receiving a blood sample; at least one electrode; and a reaction reagent system that is located in a gel matrix. The gel matrix disclosed herein is sufficient to prevent at least some of the red cells in the blood sample from contacting the electrode, and thus reduce the hematocrit sensitivity in the measurement.
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