Patent ID: 8691072
Filing Date: 2014-04-08
Classification: G01N

Abstract:
1. A method for electrochemically measuring a concentration of an analyte in a blood sample using a sensor chip, the method comprising: electrochemically detecting a current A reflecting a hematocrit value of the blood sample, in a state where a reductant of a redox substance is present on a working electrode and substantially not in contact with a counter electrode, and of an oxidant of a redox substance is present on the counter electrode and substantially not in contact with the working electrode, so as to obtain data A representing the current A or an equivalent of the current A and corresponding to the hematocrit value; electrochemically detecting a current B that results from the oxidation or reduction of the analyte in the blood sample caused, in the presence of an oxidant of a redox substance on both of a working electrode and a counter electrode, by a redox enzyme that uses the analyte as a substrate, so as to obtain data B representing the current B or an equivalent of the current B; and determining a concentration of the analyte in the blood sample based on data C obtained by correcting the data B using the data A.