| 摘要 |
PROBLEM TO BE SOLVED: To provide a testing liquid shaker excellent in the positional reproducibility of a container. SOLUTION: In the liquid shaker for shaking the testing liquid housed in a plate 11, the plate 11 is held to a moving table 60 freely movable in a horizontal direction and the moving table 60 is subjected to eccentric rotary motion by a shaking motor 72 to perform shaking operation for mixing more than one kinds of liquids dispensed in wells 11b by the plate 11. A rotary dog 74 is attached to the rotary shaft 72a of the shaking motor 72 and, by detecting a slit 74a by an origin detection sensor 75, the positional reproducibility of the plate 11 at the time of stop of operation is ensured and a feed mistake at a time when the plate 11 is held by a chuck hand 39a can be prevented.
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