| 摘要 |
A system for processing samples, especially samples containing nucleic acids, comprising a moving contamination guard in relation to the multi-chamber assembly containing the samples, where on pipetting at a chamber, the guard prevents contamination of the neighboring chamber with fluid from the first by a partial shrouding of the first chamber to prevent splashing with droplets, is new. A system for processing samples, especially samples containing nucleic acids, comprising a moving contamination guard in relation to the multi-chamber assembly containing the samples, where on pipetting at a chamber, the guard prevents contamination of the neighboring chamber with fluid from the first by a partial shrouding of the first chamber to prevent splashing with droplets, is new. The contamination guard is over the openings into the sample chambers, and slides between the openings in the chamber row. The contamination guard has a barrier between the openings of the first and second chambers. The shrouding area of the contamination guard is parallel to the chamber openings, when the guard is used to prevent fluid extracted from the first chamber dispersing into the second chamber. The shrouding has at least one opening as a passage for the pipette tips of the pipette assembly into the sample chambers under the shrouding. At least one opening in the shrouding has a conical taper towards the sample chamber opening below it. The pipette assembly has one movement action, along the line of a row of sample chambers, with an up and down movement action. A second movement unit shifts the contamination guard in relation to the sample chambers. The two movement units are integrated into a single unit. The multi-chamber assembly has a number of columns of sample chambers in rows. The contamination guard is secured to the pipettes of the pipette assembly, where the pipette unit and the contamination guard are in a one-piece unit structure, or they are separate components. |
