| 摘要 |
PURPOSE:To obtain a reagent supplying mechanism which is small-sized and free from mutual pollution of reagents, by providing a rinsing device for the inside and the outer surface of each of nozzles for a reagent. CONSTITUTION:A nozzle 24A for a first reagent moves between the positions of a reagent solution suction position on a turntable 25A, a reagent solution discharge position on a reaction line 8 and a rinsing tank 22A. A nozzle 24B for a second reagent moves between the positions of a reagent solution suction position on a turntable 25B, a reagent solution discharge position on the reaction line and a rinsing tank 22B. These nozzles suck and hold the reagent solution at the solution suction positions, and discharge the reagent solution into a reaction vessel at reagent solution applying positions. Prior to the suction of another reagent solution, the outer walls of the nozzles are rinsed in the rinsing tank 22A, while the inner walls thereof are rinsed by water for rinse and dilution after the reagent is discharged into the reaction vessel. These oerations in series are repeated every time when the reaction vessel 3 is brought to the reagent applying position on the reaction line 8. |
