| 主权项 |
1. A method for collecting a target material from a sample, the method comprising the steps of:
adding a first depletion agent to the sample to remove a sample fraction from the sample or to change the density of at least a first non-target material relative to the density of the target material; inserting a collector into an open end of a primary vessel that contains the sample, the collector including a cavity in a first end, an opening in a second end, and a cannula to extend between the opening and the cavity; inserting a processing vessel into the cavity, the cannula to extend into the processing vessel; adding a collection fluid to the processing vessel, the collection fluid having a density greater than the density of the target material; and centrifuging the primary vessel, the collector, the collection fluid, and the processing vessel, wherein during centrifuging, the collection fluid flows into the primary vessel via the collector to displace the target material which flows from the primary vessel into the processing vessel through the collector via the cannula. |
