| 摘要 |
PURPOSE:To fully automatize all operations from the preparation of a liquid sample to the injection thereof into a analyzer, by combining three change-over valves to feed the sample and a diluting agent and the like alternately to a mixing container. CONSTITUTION:A pressure gas 28 and a liquid sample 2 are switched over with a first changeover valve 16 to be fed to an outlet port 29 alternately. The pressure gas 28 and a diluting agant 136 are switched over with a second change-over valve 98 to be fed to an output port 102 alternately. Then, with a third change-over valve 36, the output port 29 is connected to one end of a weighing tube 50 at the first change-over state, the other end thereof to a discharge port 48 and the output port 102 to a delivery port 44. Furthermore, at the second change-over state, the output port 29 is connected to the discharge port 48, the output port 102 to one end of the weighing tube 50 and the other end thereof 50 to the delivery port 44. Then, material sent out from the output port 54 of the third change-over valve 36 is held into a mixing container 62 and mixed to be delivered outside. |
