ELECTROCHEMICAL MEASURING METHOD AND ELECTRODE DEVICE

PROBLEM TO BE SOLVED: To provide an electrochemical measuring method capable of performing stable measurement having high reproducibility by using a flow-through type electrode device, and the electrode device. SOLUTION: The electrochemical measuring method using the electrode device 100 having a measuring part 2a of a measuring electrode 2, and a joining part 11 for joining together comparison electrode liquid R circulating in a comparison electrode liquid channel 12 in order to connect electrically a comparison electrode 3 to the measuring electrode 2 with sample liquid S in a sample liquid channel 8, in the middle of the sample liquid channel 8 wherein the sample liquid S supplied from a sample liquid storage part 6 flows, in this order from the upstream side in the flowing direction of the sample liquid S in the sample liquid channel 8, has a constitution wherein, after supplying the sample liquid S to the measuring part 2a through the sample liquid channel 8, gas is introduced into the sample liquid channel 8 between the sample liquid S positioned on the measuring part 2a and the sample liquid S positioned in the sample liquid storage part 6, and a measured value by the measuring electrode 2 is detected in the state where the sample liquid S positioned on the measuring part 2a is separated from the sample liquid S positioned in the sample liquid storage part 6. COPYRIGHT: (C)2008,JPO&INPIT