| 摘要 |
PURPOSE:To supply a specific component in a fine amount of a sample to an electrode system part easily and speedily with high accuracy and to perform quantitative determination by uniting an electrode system with a porous body and adjusting their distance. CONSTITUTION:The electrode system consisting of a counter electrode 2, a measuring electrode 3, and a reference electrode 4 is formed on an insulating substrate 1, and then an insulating layer 5 is formed covering the electrode system except parts 2'-4' which operate electrochemically. A cellulose water- absorptive high polymer layer is formed on the surfaces of those electrode systems 2'-4' and a groove is formed with both-sided adhesive tapes 6; and a polycarbonate porous film 8 is adhered on a bored holding frame 9 made of resin and fixed by the both-sided adhesive tapes 6 so that the electrode systems 2'-4' are covered. Further, a porous body 10 is placed at the hole part of the holding frame 9, a cover 11 made of resin having a hole part having a diameter smaller than the porous body is adhered, and the entire body is integrated. |
