Automatic analyzer

An automatic analyzer comprising:

• a reaction disk, on which reaction cells for allowing a sample and a reagent to mix and react with each other are arranged on the circumference thereof, and which alternately repeats rotation and stop;
• a first reagent dispensing mechanism which dispenses the reagent into the reaction cell;
• a thermostat bath for controlling the reagent or a reaction solution in the reaction cell to have a constant temperature;
• a photometer which detects transmitted light or scattered light by irradiating light onto the reaction solution in the reaction cell;
• a reaction container supply section which supplies a disposable reaction container for allowing the sample and the reagent to mix and react with each other;
• a second reagent dispensing mechanism with a reagent heating function which dispenses the reagent into the disposable reaction container;
• a coagulation time detection section which detects transmitted light or scattered light by irradiating light onto the reaction solution in the disposable reaction container;
• a reaction container temperature control block which has the coagulation time detection section and is used for controlling the reagent or the reaction solution in the disposable reaction container to have a constant temperature;
• a reagent dispensing syringe which is connected to the second reagent dispensing mechanism with a heating function;
• and
• a fluid temperature control mechanism which is disposed upstream of the reagent dispensing syringe and controls the temperature of an internal fluid of the reagent dispensing syringe.