| 摘要 |
The invention relates to a vessel and to a rod used with the vessel for collecting magnetic particles from a liquid containing the particles in the vessel, or for releasing the particles into a liquid in the vessel. The distance from the rod (3), when inserted into the vessel (1), is great enough at each point to prevent any liquid ring or ring part from being formed between the vessel and the rod, which ring could be removed along with the rod. In this manner, the liquid is prevented from being removed from the vessel along with the rod.
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