PURPOSE: To enable the production of a solid-phase conversion reagent which is safe for workers and is uniform, by sucking a drain liquid of a vacuum tank with a tubing pump away into a waste liquid tank after the drain liquid sucked through a sucker is stored temporarily i to the vacuum tank.
CONSTITUTION: A residual liquid draining device 216 is connected to a residual liquid draining nozzle for draining residual liquid in a reagent solid phase container through a multi-channel joint 261 and is made up of a vacuum tank 269, a vacuum solenoid valve 270, a vacuum pump 271, a liquid draining hose 272, a tubing pump (two-throw head) 273, a liquid draining tank 274 and the like. A drain liquid sucked through the residual liquid draining nozzle is stored temporarily with a vacuum pump 271 into the vacuum tank 269 and then, a drain liquid in the vacuum tank 269 is sucked with the tubing pump 273 to be drained into the waste liquor tank 274. This enables automatic draining of the drain liquid into the waste liquor tank 274 with a high suction response.
GOTO YUTAKA
TAKAHASHI KAZUTOMO
TAKAO KIYOSHI
TAKANO KATSUAKI
