ELECTROCHEMICAL MEASUREMENT DEVICE

A value of a current flowing between electrodes at the time of applying a voltage in an electrochemical measurement flow cell may not be necessarily the same value by an individual difference of such as the electrochemical measurement flow cell, a measurement device, and a measurement target solution or a combination thereof. For this reason, it is difficult to determine a constant threshold value and detect the possibility of measurement abnormality by a comparison with the threshold value. A main characteristic of the present invention is that a device performing measurement using a flow cell for electrochemical measurement which introduces a sample solution, applies a voltage between a working electrode and a counter electrode to analyze the sample solution electrochemically, discharges the sample solution, and performs the electrochemical measurement continuously includes a unit which measures a value of a current flowing between electrodes at the time of applying a voltage, a unit which records the measured current value, a unit which compares the recorded current value with a current value set separately as a determination standard, and a unit which determines whether the current value measured at a cycle of a determination target and recorded is normal by the comparison.