METHOD OF SEPARATING CELL FROM SAMPLE

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PROBLEM TO BE SOLVED : To separate rare cells from a sample fluid by a positive selection or negative selection of antibody by centrifuging in a tube containing a harvesting float. SOLUTION : The harvesting float has an axial passage and density to settle in the sample fluid and expand the layer of the target component. The antibody is preferably coupled to a particulate carrier, such as a microbead, to attach either the target component or a contaminating component to the particulate carrier. In the positive selection, the particulate carrier is recovered in the axial passage of the float. COPYRIGHT : (C)2009, JPO&INPIT