| 摘要 |
A rinse mechanism 12 rinses reaction cuvettes 3 with first and second detergents. An R1 reagent pipetting mechanism 8 rinses the reaction cuvettes 3 that have been rinsed by the rinse mechanism 12 with a special detergent. A counting unit counts and stores in a storage unit a use frequency of each reaction cuvette 3 for a specific reagent item. A determining unit determines whether the counted use frequency exceeds a predetermined threshold N1. A control unit controls the R1 reagent pipetting mechanism 8 such that, in a case where the counted use frequency exceeds the predetermined threshold N1, the reaction cuvettes 3, which have exceeded the predetermined threshold N1, are soaked with the special detergent only for a period equal to or less than a value derived by multiplying a pipetting cycle time, which indicates a period when a sample is pipetted, by the total number of reaction cuvettes and a predetermined integer. |
