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Question

State the principle of the process of centrifugation. List any three applications of centrifugation.


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Solution

Centrifugation: Centrifugation is a technique used to separate the mixtures or particles from a solution by applying centrifugal force.

Principle of the centrifugation process

  • The centrifuge involves the principle of sedimentation.
  • The principle of the centrifugation technique is to separate the particles suspended in liquid media under the influence of a centrifugal field. These are placed either in tubes or bottles in a rotor in the centrifuge.
  • Sedimentation is a phenomenon where suspended material settles out of the fluids by gravity. The suspended material can be particles such as clay or powder.

The three applications of centrifugation:

  • It is used in diagnostic labs for blood and urine test.
  • It is used to separate colloidal particles from their solutions.
  • It is used to separate cream from milk and also butter from cream.

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