초록 ▼

In a process of separating a liquid sample having phase portions of different densities by centrifugal separation, a phase separator container is employed. The phase separator container comprises a housing having concentric inner and outer cylindrical walls defining a longitudinal axis and a top wal

In a process of separating a liquid sample having phase portions of different densities by centrifugal separation, a phase separator container is employed. The phase separator container comprises a housing having concentric inner and outer cylindrical walls defining a longitudinal axis and a top wall and further a piston body constituting a bottom wall of the housing. The piston body defines together with the outer cylindrical wall, the inner cylindrical wall and the top wall, an annular chamber for receiving the liquid sample. The piston body is displaceable within the annular chamber for draining a phase portion separated from the liquid sample through a drain conduit means communicating with the annular chamber. The phase separation chamber further comprises a reaction chamber to which the phase portions exposed from the annular chamber is processed. The apparatus further includes a liquid supply means for supplying the liquid sample to the annular chamber, a motor means for rotating the phase separation container round its longitudinal axis at a rotational speed causing a separation of the liquid sample into the phase portions, and an actuator means for displacing the piston body within the annular chamber.

대표청구항 ▼

[ What is claimed is:] [1.] A phase separation container for use in a centrifugal apparatus for separating a liquid sample having phase portions of different densities into said phase portions by centrifugal separation comprising:a housing having concentric inner and outer cylindrical walls defining

[ What is claimed is:] [1.] A phase separation container for use in a centrifugal apparatus for separating a liquid sample having phase portions of different densities into said phase portions by centrifugal separation comprising:a housing having concentric inner and outer cylindrical walls defining a longitudinal axis, a bottom wall, and a top wall, said outer cylindrical wall, said inner cylindrical wall, said bottom wall and said top wall defining together an annular chamber for receiving said liquid sample,a piston body constituting said bottom wall or top wall of said housing and being displaceable within said outer cylindrical wall in a range from a first position in which a maximum interior volume is defined within said annular chamber to a second position in which a minimum interior volume is defined within said annular chamber,a drain conduit means, communicating with said annular chamber, for expelling one of said phase portions from said annular chamber, anda liquid supply means for supplying said liquid sample to said annular chamber of said phase separation container as said piston body is in said first position.