A sensor for blood component analysis that can correct the effect of a hematocrit easily is provided. The sensor includes an analysis portion including a working electrode, a counter electrode, and a reagent portion. The reagent portion includes an oxidoreductase that reacts with the blood component...http://www.google.com/patents/US7641785?utm_source=gb-gplus-sharePatent US7641785 - Method of measuring blood component and sensor used in the method