Patent ID: 8007722

Claim:
An analyzer comprising: a reagent suction unit for suctioning reagent from a reagent container; an analyzing unit for analyzing an analyzing specimen comprising a sample and the reagent; a container holder configured to hold a plurality of reagent containers, wherein the container holder comprises: a plurality of holding regions for holding the reagent containers; and a reagent container holding portion corresponding to each holding region, wherein each reagent container holding portion defines a bottom of the corresponding holding region; and a container raising and lowering unit comprising a mounting platform, wherein the container raising and lowering unit is configured to raise and lower the mounting platform through any one of the plurality of holding regions between a first position at which the reagent container is mounted on and retrieved from the mounting platform and a second position at which the reagent container is brought into contact with the reagent container holding portion corresponding to the holding region through which the mounting platform is raised and lowered.