| 摘要 |
PURPOSE:To obtain a measuring electrode having superior durability and stability in the simple constitution by providing two film-like conductive bodies on an insulating substrate which are in touch with a sample liquid at one ends thereof and use the other ends as connecting parts. CONSTITUTION:Two film-like conductive bodies 5, 6 are provided on an insulating substrate 4. One ends 51, 61 of the conductive bodies 5, 6 are to be in touch with a sample liquid, and the other ends become connecting parts. A material displaying necessary insulating properties when soaked in a measuring solution, for instance, plastic, ceramic, glass or the like may be employed for the substrate 4. As a material for the conductive bodies 5, 6, gold, silver, platinum, carbon or the like is used. An edge of a conductive part of the electrode having the conductive bodies 5, 6 and a face of the substrate 4 in touch with the edge are coated with a single sealing body 7 at least at one point. An end 41 of the substrate 4 at the side in touch with the sample liquid including the conductive part at the side of tone touching ends 51, 61 of the conductive bodies 5, 6 is constructed to be in touch with a carrier such as a buffer solution or the like, and the output of the electrode is guided from the other side of the conductive bodies. |
