A cartridge is configured for insertion and centrifugation in a centrifuge. The cartridge includes a first drum which has a first chamber, and a displacement device which is designed to rotate the first drum about a center axis thereof to selectively and conductively connect the first chamber to a second or a third chamber. In another embodiment, the cartridge includes a first drum which has a first chamber and a second chamber, and a displacement device which is designed to rotate the first drum about the center axis thereof to selectively and conductively connect the first chamber to a third chamber or the second chamber to the third chamber. The displacement device has an actuator which directly or indirectly moves the first drum about the center axis.