| 摘要 |
PURPOSE:To improve the accuracy detection and to increase the speed of response by providing a working electrode and a counter electrode with by-pass parts and accurately setting a potential over the entire electrode. CONSTITUTION:The working electrode 2 and counter electrode 3 are provided with by-pass parts 22 and 32 which connected terminal parts 21, 31, and 41 connected to an external circuit and reaction parts 20, 30, and 40 at plural positions and supply detection currents. Consequently, the detection currents generated at respective parts of the reaction parts 20, 30, and 40 flow from nearby reaction places directly to the terminal parts through the by-pass parts 22 and 32, so the resistance becomes extremely small and the potential of the whole reaction parts is uniformized. |
