Patent ID: 11313872

Abstract:
In dispenser-type reagent dispensing, because a reagent is transferred through a piping flow path to a prescribed position and dispensed, some of the reagents may remain in the piping flow path and reagent crystallization may consequently occur in the piping flow path. Thus, crystallization prevention for the entire piping flow path must be taken into consideration. Provided is a dispensing device that comprises a reagent suction pipe for sucking in a reagent from a reagent vessel, a liquid transfer mechanism for transferring the reagent, a nozzle for discharging the reagent, and a reagent discharge pipe that is connected to the reagent container and a port that can be connected to the nozzle. The dispensing device is characterized in that the reagent is dispensed from the nozzle into a reaction vessel and when the reagent is not being dispensed, the nozzle and the port are connected and the reagent is circulated.