| 摘要 |
In a preferred embodiment, a multiple sample transfer device which includes a plurality of hollow pistons disposed in a like number of cylindrical channels and connected to a moving plate to permit simultaneous movement of the pistons. The pistons are connected to the moving plate by retaining rings adjacent the plate and above and below the plate such that the pistons are fixed to the plate in the direction of plate movement, but relatively free to move in a direction orthogonal to the direction of plate movement.
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