Patent ID: 8043560

Claim:
An automatic analyzer comprising: a reaction container for having a plurality of disposable reaction vessels set therein; a reagent injecting unit for injecting a reagent into the disposable reaction vessel; a specimen injecting unit for injecting a specimen into the disposable reaction vessel; an absorbance measuring unit for emitting light to the disposable reaction vessel and measuring reaction absorbance of the disposable reaction vessel having a reagent and a specimen injected therein and reacted with each other, and also measures a first blank value representing absorbance of the disposable reaction vessel which is empty and a second blank value representing absorbance of the reaction vessel having only a reagent injected thereinto, wherein the absorbance measuring unit is provided with a designation unit to designate one of the first blank value and the second blank value to be used as a blank value; a controller for controlling the absorbance measuring unit; an arithmetic unit for calculating based on outputs of the absorbance measuring unit compensating the disposable reaction absorbance based on the blank value selected in the designation unit; a waste vessel storage unit for storing waste disposable reaction vessels; a transport unit for removing from the reaction container the disposable reaction vessel after measuring and dropping the disposable reaction vessel into the waste vessel storage unit; and a control unit for controlling the transport unit.