Centrifuges: How Centripetal Force Separates Substances

Centrifuge.

It uses the principle of centripetal force to separate substances of different densities by spinning them at high speed in various fields (often a centrifugal force many thousands of times greater than the pull of gravity). For instance, a centrifuge is used to separate red blood cells from plasma in a process known as centrifugation, a common method employed in clinical chemistry.