A filtration device that includes a cylindrical body and a filtration part. The cylindrical body has a first open end and a second closed end with an end wall. The filtration part is on a circumferential portion of the cylindrical body and has through-holes.

A rotor (10) for use in a centrifuge includes a rotor body (12), a drive hub (20), and a balance ring (16, 160). The rotor body (12) includes an elongated bore (32) extending along its axis of rotation (24), and an upper surface (26) having an annular groove (42). The drive hub (20) is mounted within the elongated bore (32), and includes a drive portion (138) having a cross-sectional shape that is complementary to the cross-sectional shape of the elongated bore (32). The drive hub (20) applies torque to the rotor body (12) via engagement of the drive portion (138) with the lower bore opening (36) of the rotor body (12). The balance ring (16, 160) is positioned in the annular groove (42), and includes a plurality of apertures (78, 163) formed in an upper surface (90, 170) thereof. Each of the apertures (78, 163) is configured to receive a weight (80, 164) so that the rotor (10) can be balanced by selectively adding weights (80, 164) to one or more of the apertures (78, 163).

A separation container for extracting a portion of a sample for use or testing and method for preparing samples for downstream use or testing are provided. The separation container may include a body defining an internal chamber. The body may define an opening, and the body may be configured to receive the sample within the internal chamber. The separation container may further include a seal disposed across the opening, such that the seal may be configured to seal the opening of the body, and a plunger movably disposed at least partially inside the internal chamber. The plunger may be configured to be actuated to open the seal and express the portion of the sample.

The present invention relates to a centrifuge rotor with a rotor body and a receptacle arranged centrally therein for receiving a drive head of a drive shaft of a centrifuge which can be rotated about an axis of rotation (R), and sample receptacles for accommodating a plurality of sample containers. A holding crown is arranged on a top side (O) of the rotor body facing away from an insertion side (E) of the drive head, said holding crown having an annular base body, which encloses a central opening, and prongs extending upward away from the top side (O), wherein the holding crown is arranged in such a way that the axis of rotation (R) runs through the central opening. The present invention further relates to a holding crown for use with a centrifuge rotor and having an annular base body enclosing a central opening and prongs emanating from the base body and extending upward, wherein the prongs are offset at least in the region of their free ends by a spacing (A) from an inner edge of the base body. The present invention further relates to a holding crown arrangement comprising the holding crown, and a centrifuge comprising the centrifuge rotor, the holding crown or the holding crown arrangement.

A centrifuge rotor (10) includes a closure (32) between a lower part (12) of the centrifuge rotor (10) and a cover (14). The centrifuge rotor has been improved such that proper single-handed operation is made possible. In particular, the closure (32) can be closed and detached again using just one hand. This means that the closure (32) has a simple structure and can also be produced cost-effectively.

A centrifuge rotor (10) has a closure (32) between a lower part (12) of the centrifuge rotor (10) and a cover (14). The closure has been improved such that proper single-handed operation is made possible. In particular, the closure (32) can be closed and detached again using just one hand. This means that the closure (32) has a simpler structure and can also be produced more cost-effectively.

Provided is a centrifuge. In a centrifuge sample container (40) having a body part (41) and a bottom part (42), the body part (41) has two parallel flat surfaces, and includes an opening (44) having an elliptical shape from above view. The bottom part (42) is formed by a semi-cylindrical part (42a) and quarter spherical parts (42b) connected to the sides of the semi-cylindrical part. A height (H) of the sample container is greater than a length (L.sub.2) in the short axis direction of the opening, and a curvature radius (R.sub.1) of the outer surface of an arc part of the elliptical shape, a curvature radius (R.sub.2) of the outer surface of the semi-cylindrical part, and a curvature radius (R.sub.3) of the outer surface of the quarter spherical parts are equal. A flange part (43) that expands radially outward is formed on the opening (44) of the body part (41).

A device for parallel oligomer synthesis having a centrifuge with a plurality of reactor holders configured to retain reactors at an angle and a plurality of siphon based outflow holders are disclosed. A method of parallel solid-based peptide synthesis following the timing protocol of the device and a use of the device for parallel oligomer synthesis are also disclosed.

Damage caused by displacement of a rotating shaft is prevented with an acceleration sensor. A centrifuge according to the present invention includes a rotor, a driving source that rotates the rotor, a rotating shaft that links the rotor with the driving source, an acceleration sensor, and a control unit. The acceleration sensor outputs a value indicating acceleration in at least two different directions which are orthogonal to an axial direction of the rotating shaft. The control unit obtains a displacement conversion value corresponding to a value, which is obtained by dividing a value which is proportional to acceleration based on a value indicating acceleration and outputted by the acceleration sensor, by a value which is proportional to a square of an angular velocity of the rotor, and stops rotation of the rotor when the displacement conversion value satisfies a displacement determination criterion which is predetermined and indicates that displacement is large.

An apparatus and method may be used to separate a biological liquid sample and retrieve a separated liquid portion therefrom. The apparatus may have a tube, an insert, and a positioning mechanism. The tube may have a proximal end, a distal end, and a chamber between the proximal and distal ends for receiving the biological liquid sample. The insert may be positioned in the chamber, and may have a first end, a second end, a well between the first and second ends, and a draw tube in fluid communication with the second end and the well. The positioning mechanism may be connected to the tube and the insert, and may be manually actuable to move the insert between the proximal end and distal end to allow a separated portion of the biological liquid sample to flow proximally from the chamber through the draw tube and collect in the well.