Measuring Method and Measuring Apparatus

A measuring apparatus for measuring a target substance contained in a sample by using an analysis tool in which at least one working electrode provided with a reagent including an enzyme and at least one counter electrode are arranged in a flow passage, the measuring apparatus comprising:

• a first measuring unit configured to apply a first signal, which is a direct current signal, having a first value to the sample disposed in the flow passage by using the working electrode and the counter electrode, and configured to measure a first electric response value of the sample to the first signal;
• a second measuring unit configured to apply contiguously for a given time a second signal, which is a direct current signal, having a second value higher than the first value to the sample disposed in the flow passage by using the working electrode and the counter electrode, and configured to measure a second electric response value of the sample within the given time to the second signal, the second electric response value indicating amount of electric charge generated by electrolysis of water in the sample;
• and
• a correcting unit configured to correct a value obtained from the first electric response value based on the second electric response value.