| 摘要 |
The invention relates to a device for the contamination-free delivery and discharge of liquid into and from a reaction vessel 15, having a tube 1, one end of which [lacuna] designed as a first connection fitting 2 for connection to a pipette or the like and the other end of which has a first opening 3. In order to avoid contamination when the reaction vessel is filled with and drained of liquids, it is proposed that a second connection fitting 4, which is in communication with at least a second opening 8, is provided in the vicinity of the first end.
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