| 摘要 |
A method of easily and accurately sorting the groups of particulates containing two or more types of particulates with different specific gravities into two groups, i.e., a high specific gravity group and a low specific gravity group, comprising the step of centrifugally separating the particulate groups together with solid inclusions having a specific gravity positioned in the intermediate zone of the specific gravity of the particulate groups, vertically movable while inscribing in a centrifugal tube, and having an upper part from a portion inscribing in the centrifugal tube formed in projected shape to move high specific gravity particulates to the lower side of the solid inclusions through the tangential line of the centrifugal tube inside wall to the solid inclusions or move low specific gravity particulates to the upper side of the solid inclusions and, at the same time, move the solid inclusions to the intermediate position of two high and low specific gravity groups of particulates, whereby the method can be utilized favorably for separating leucocytes from blood.
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