Method for measuring amount of blood component in blood

A method for measuring the amount of a blood component in blood using a biosensor,

• the biosensor comprising:
• a first electrode system for measuring a blood component amount-dependent current value, the first electrode system including a first working electrode and a first counter electrode;
• a second electrode system for measuring a blood component amount-dependent current value, the second electrode system including a second working electrode and a second counter electrode;
• and
• a third electrode system for measuring a hematocrit-dependent current value, the third electrode system including a third working electrode and a third counter electrode,
• wherein a first reagent layer is disposed on the first electrode system,
• a second reagent layer is disposed on the second electrode system,
• the first reagent layer and the second reagent layer are disposed spaced apart from each other,
• the first reagent layer and the second reagent layer each contain a reagent for measuring the amount of the blood component in the blood,
• at least one of the first counter electrode, the second working electrode, and the second counter electrode is used as the third working electrode, and
• at least one of the first working electrode, the first counter electrode, and the second counter electrode is used as the third counter electrode,
• the method comprising:
• a first step of applying a first voltage to the first electrode system and detecting a first blood component amount-dependent current value;
• a second step of applying a second voltage to the second electrode system and detecting a second blood component amount-dependent current value;
• a third step of applying a third voltage to the third electrode system and detecting a third hematocrit-dependent current value;
• and
• a step of calculating the amount of the blood component using the first blood component amount-dependent current value, the second blood component amount-dependent current value, and the third hematocrit-dependent current value,
• wherein the first step is performed at least twice,
• the second step is performed at least twice,
• portions of the first steps and the second steps are simultaneously performed, and
• two or more first blood component amount-dependent current values obtained are used as the first blood component amount-dependent current values in the step of calculating the amount of the blood component.

A method for measuring the amount of a blood component in blood using a biosensor,

• the biosensor comprising:
• a first electrode system for measuring a blood component amount-dependent current value, the first electrode system including a first working electrode and a first counter electrode;
• a second electrode system for measuring a blood component amount-dependent current value, the second electrode system including a second working electrode and a second counter electrode;
• and
• a third electrode system for measuring a hematocrit-dependent current value, the third electrode system including a third working electrode and a third counter electrode,
• a fourth electrode system for measuring a hematocrit-dependent current value, the fourth electrode system including a fourth working electrode and a fourth counter electrode,
• wherein at least one of the first counter electrode, the second working electrode, and the second counter electrode is used as the third working electrode,
• at least one of the first working electrode, the first counter electrode, and the second counter electrode is used as the third counter electrode,
• the first counter electrode is used as the fourth working electrode,
• the second counter electrode is used as the fourth counter electrode,
• a first reagent layer is disposed on the first electrode system,
• a second reagent layer is disposed on the second electrode system,
• the first reagent layer and the second reagent layer are disposed spaced apart from each other,
• the first reagent layer and the second reagent layer each contain a reagent for measuring the amount of the blood component in the blood,
• the method comprising:
• a first step of applying a first voltage to the first electrode system and detecting a first blood component amount-dependent current value;
• a second step of applying a second voltage to the second electrode system and detecting a second blood component amount-dependent current value;
• a third step of applying a third voltage to the third electrode system and detecting a third hematocrit-dependent current value;
• the method further includes a fourth step of applying a fourth voltage to the fourth electrode system and detecting a fourth hematocrit-dependent current value;
• and
• a step of calculating the amount of the blood component,
• wherein the first step is performed at least twice,
• two or more first blood component amount-dependent current values obtained are used as the first blood component amount-dependent current values in the step of calculating the amount of the blood component, and
• the step of calculating the amount of the blood component includes a step of calculating the amount of the blood component using the first blood component amount-dependent current value, the second blood component amount-dependent current value, the third hematocrit-dependent current value, and the fourth hematocrit-dependent current value.