| 摘要 |
PURPOSE:To obtain a device measuring device d electrochemical emission which has high sensitivity in detection of a substance to be measured in a specimen and, in particular, which can measure the substance in the specimen with high sensitivity even when the specimen is of low concentration. CONSTITUTION:A working electrode 11 and an opposite electrode 12 are fixed to a wall 10, while a light-transmitting window 13 is disposed with a prescribed gap from the wall 10, and a measuring cell 14 for a measuring liquid L is formed by the wall 10 and the window 13. A photomultiplier 16 for detecting ECL from an ECL generating substance in the measuring liquid L is disposed in proximity to the window 13. An optical filter 18 for removing an unnecessary light other than the ECL generated from the ECL generating substance is interposed between the photoelectric surface 17 of the photomultiplier 16 and the window 13, while a cooling block 19 for cooling the photoelectric surface 17 is provided around the photo-multiplier 16. |
