Method for measuring components of biological sample

A biosensor for obtaining a hematocrit value of a biological sample, comprising:

• a capillary for introducing the biological sample;
• a reagent part containing an enzyme and a mediator in the capillary;
• a first hematocrit measurement system for measuring a hematocrit value, the first hematocrit measurement system being disposed so as to be in contact with the reagent part in the capillary and comprising a first working electrode and a first counter electrode;
• and
• a second hematocrit measurement system for measuring a hematocrit value, the second hematocrit measurement system comprising a second working electrode at a place where the reagent part is not disposed and a second counter electrode disposed so as to be in contact with the reagent part,
• wherein the first hematocrit measuring system is configured to start a first voltage application for a duration longer than 0 second and up to 0.7 second within 0 to 0.5 second after detecting introduction of the biological sample so as to obtain a first current value,
• the second hematocrit measurement system is configured to apply a second voltage to the second hematocrit measurement system after the first current value is obtained, so as to obtain a second current value, and
• the biosensor is configured to obtain the hematocrit value of the biological sample based on the first current value and the second current value.