| 摘要 |
PURPOSE:To prevent the lowering of sensitivity and waste of carriers with limited diffusion of a sample zone due to unnecessary transfer thereof by halting or retaining the sample zone in a reaction pipe during the reaction with a structure of feeding carriers intermittently into a conduit. CONSTITUTION:An intermittent pump 8 sends a sufficient amount of carriers into a conduit 3 to allow feeding of all of a sample in a sample measuring tube 5 into a reaction pipe 6 and then, stops in preparation of the subsequent operation. Consequently, the sample is halted and retained in the reaction pipe 6, a condition under which a specified time elapses. Then, the intermittent pump 8 starts to work to discharge a reactant produced in the reaction pipe 6 passing through a detector 7 and stops. This permits the proceeding of the reaction halting the sample, eliminating lowered concentration due to diffusion occuring during the movement thereof in a long passage as seen in the past. A highly sensitive detection of the reactant can be done. |
