What is a centrifuge primarily used for?

A centrifuge is primarily used to separate fluids of different densities through a process known as centrifugation. When samples are placed in the centrifuge and spun at high speeds, the centrifugal force causes denser components to move outward to the bottom of the container, while less dense components remain towards the top. This process is essential in various laboratory applications, particularly in blood processing where components like red blood cells, plasma, and white blood cells need to be separated for diagnostic purposes.

While other functions may be vital in a laboratory setting, such as refilling liquids, sanitizing instruments, or measuring temperatures, these tasks are not the primary purpose of a centrifuge. Its specific design and operation are intended solely for the separation of substances based on their densities.