| 摘要 |
<p>An automatic analyzer comprises a waste liquid sucking device which, after sucking a reacted waste liquid from reaction vessels moved to a dumping position by suction nozzles, moves the suction nozzles to a cleaning position, and sucks a cleaning fluid to clean the suction nozzles. The waste liquid sucking device (20) comprises pressure sensors (23) installed near the suction nozzles of pipes (22) for introducing a sucking negative pressure to the suction nozzles (21b) and detecting the pressures at the suction nozzles when the reacted waste liquid is sucked, a vessel determination part (15b) for determining the presence or absence of each reaction vessel (7) at the dumping position, and a clogging determination part (15c) for determining the presence or absence of clogging of each suction nozzle according to a variation in the pressure at the suction nozzle and the presence or absence of the reaction vessel.</p> |
