| 摘要 |
<P>PROBLEM TO BE SOLVED: To highly precisely/highly sensitively and continuously detect/determine quantitatively only a measuring objective chemical substance by an electrode reaction, without receiving interference by a chemical substance other than the measuring objective chemical substance, in an aqueous solution containing the plurality of chemical substances. <P>SOLUTION: An electrode 1 for depositing the chemical substance other than the measuring objective chemical substance on an electrode surface to be captured or for changing it into a chemical state not affecting the measurement of the measuring objective chemical substance, and not acting on the measuring objective chemical substance is provided in addition to an electrode 2 for measuring the measuring objective chemical substance, perceiving a difference in redox potentials accompanied to redox reactions of the measuring objective chemical substance and the chemical substance other than it, those electrodes are held in different potentials, an interference due to the the chemical substance other than the measuring objective chemical substance out of the chemical substances diffusing from the aqueous sample solution 12 is removed by the electrode 1, and the measuring objective chemical substance passed through the electrode is thereafter detected /determined quantitatively by the electrode 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
