| 摘要 |
The invention concerns a device for preparing samples for analysis, comprising a plate (2) with several columns (4) each comprising a product (6), a vacuum source, an injection needle. The device comprises a sheet (8) for covering the plate (2) sealing a top end of the columns (4) when a bottom end of the columns is communicating with the vacuum source, even after the sheet has been pierced with the needle.
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