| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic analyzer on which reaction chambers at absorbancy measuring positions can be positioned accurately, with respect to a luminous flux from a photometer regardless of the installed state of a reaction disk to a reaction chamber and the presence/absence of the stopping error of the reaction disk. SOLUTION: Fixed clearances are provided in advance between reaction chamber fixing sections and the reaction chambers in the reaction disk and, in addition, individual reaction chambers at absorbancy measuring positions are positioned by means of reaction chamber positing means provided side by side separately from the reaction disk.
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