| 摘要 |
A rack holds, in a state of a set, an extracting cartridge, a waste liquid vessel for accommodating discharged liquids of a sample liquid and a washing liquid having been discharged from the extracting cartridge, and a recovery vessel for accommodating a recovery liquid, which contains a recovered predetermined substance and has been discharged from the extracting cartridge. The extracting cartridge is held at a top section of the rack. The waste liquid vessel and the recovery vessel are held at positions below the top section of the rack, such that the waste liquid vessel and the recovery vessel are capable of being moved alternately to the position just below the extracting cartridge having been held at the top section of the rack.
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