Centrifuge

The centrifuge machine is an electronic equipment which helps in the separation of the samples like a mixture of suspended solids or two or more immiscible liquids. The sample is contained in an Eppendorf or a test tube or vials. The equipment is fixed at the axis of rotation and centrifugal forces cause the samples to separate such that the denser materials are settled below the lighter ones. The simplest design is a hand centrifuge where the rotation is brought about using hands. The more advanced devices are electronic and have a closing lid at the top. The lid prevents the user from accidents and disasters. The rpm (rotation per minute) and the duration of rotation can be adjusted easily. It is important that the manual is read carefully and that the rotors are well-balanced before running the machine. It is widely used in DNA isolation experiments and to extract sera from the blood and also in blood and urine tests in diagnostics amongst many other procedures. The equipment does not require much maintenance.