How does a centrifuge work
Laboratory Centrifuges. A centrifuge is a laboratory device that is used for the separation of fluids, gas or liquid, based on density. Separation is achieved by spinning a vessel containing material at high speed; the centrifugal force pushes heavier materials to the outside of the vessel. The centrifuge works using the sedimentation principle, where the centrifugal acceleration causes denser substances and particles to move outward in the radial direction. At the same time, objects that are less dense are displaced and move to the center. Centrifugation is a method of separating molecules having different densities by spinning them in solution around an axis (in a centrifuge rotor) at high speed. ... Small tabletop centrifuges can be used to pellet cells or to collect strands of DNA during ethanol precipitation.To balance a centrifuge, put samples in the centrifuge so they are directly across from each other. If you only have one tube to centrifuge, you should balance it with a “blank” tube (a tube filled with water). If you have three tubes, you should put them in 1-7-13, so on and so forth.
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