Sign In

An Introduction to the Centrifuge

Overview

The centrifuge is an instrument used in nearly every research lab across the globe. Centrifugation is the process by which a centrifuge is used to separate components of a complex mixture. By spinning laboratory samples at very high speeds, the components of a given mixture are subjected to centrifugal force, which causes more dense particles to migrate away from the axis of rotation and lighter ones to move toward it. These particles can sediment at the bottom of the tube into what’s known as a pellet, and this isolated specimen, or the remaining solution, the supernatant, can be further processed or analyzed. This video is meant to introduce a student to some of the basic principles of centrifugation, as well as the instrument’s basic operation. For example the speed of centrifugation in rotations per minute, or RPM, is contrasted with relative centrifugal force, or RCF, as a measurement of the magnitude of centrifugation, which is independent of rotor size. In addition to concepts and basic use, safety precautions relating to centrifugation are discussed, as well as the types of centrifuges and centrifuge rotors that exist.

Procedure

The centrifuge is an instrument used in nearly every biomedical research lab across the globe.

Centrifugation is a process by which a centrifuge is used to separate components of a complex mixture.

By spinning laboratory samples at very high speeds, the components of a given mixture are subjected to centrifugal force, which causes more dense particles to migrate away from the axis of rotation and lighter ones to move toward it. These particles can sediment at the bottom of the tube into what’s known a

Log in or to access full content. Learn more about your institution’s access to JoVE content here

Tags
CentrifugeBiomedical Research LabCentrifugationComplex MixtureCentrifugal ForceDense ParticlesLighter ParticlesSedimentationPelletSupernatantRotorSpindleLidRefrigeration UnitInput ParametersSpin DurationTemperature ControlSpin SpeedRPM

Skip to...

0:00

Overview

0:57

Components of a Centrifuge and Parameters of a Centrifuge Run

3:29

Operating the Centrifuge

5:41

Applications

7:23

Summary

JoVE Logo

Privacy

Terms of Use

Policies

Research

Education

ABOUT JoVE

Copyright © 2024 MyJoVE Corporation. All rights reserved