Basics Of Lab Centrifuges

Centrifuge is the outward-pushing force felt by bodies moving in a circular motion. However, there is no outward force acting, and centrifugal force is therefore known as a “fictitious” force. The outward-pushing force is as a result of the combined effect of inertia and an inward-pushing external force. Centrifuge comes into play when the rotating objects are observed from the rotating frame of reference, an accelerating and therefore non-inertial frame of reference in which Newton’s laws of motion do not hold. Centrifugal force is often confused with centripetal force.

iFuge L30 The Laboratory Centrifuge

iFuge L30 The Laboratory Centrifuge

Centrifugal force does not actually exist, we actually feel it because we are in a non-inertial coordinate system and it appears quite real to the object being rotated. The reason being that the object believes that it is in a non-accelerating situation, when in fact it is not. For example, a child on a merry-go-round does not experience any real outward-force, but he/she must exert a force to stay on to the merry-go-round. It is because the centrifugal force appears so real, it is often very useful to use as if it were real. The bigger the object, the greater the force. The greater the speed of rotation, the greater the outward force. It is harder to stay on a merry-go-round that is rotating fast compared to that rotating slow. If you move further out on the merry-go-round, you will have to exert a greater force to stay on. In order to stay on a circular path, we must exert a force towards the center called centripetal force. Consider a rope with a ball on the end. If you swirl the ball around in a circle over your head while holding onto the rope, the ball will experience the so-called centrifugal force, and the rope provides the force to keep in moving in the circle.

A laboratory centrifuge is a laboratory equipment, driven by a motor, which spins liquid samples at high speed. There are several types of centrifuges, depending on the size and the sample capacity. Neuation offer a wide range of state of the art Microcentrifuges for several different applications in research laboratories.

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What is a Micro centrifuge

There are many types of micro centrifuge. It plays an important role in providing accurate results in medical studies. It is a vital piece of equipment and is made from several different materials. The task involves separation of component products on a specimen. It is driven by a motor and spins liquid at a very high speed. The centrifuge depends on the size and capacity. Centrifugation is the process that used for separation of mixtures using centrifugal force. It is mainly used in the industries and medical laboratories. Glass centrifuge tubes can be used with almost all solvents, but tend to be more expensive. It is possible to clean them like other laboratory glassware and can be sterilized by autoclaving. Plastic centrifuge tubes tend to be less expensive

iFuge M08 – The Smart Personal MicroCentrifuges

iFuge M08 – The Smart Personal MicroCentrifuges

The load in a laboratory centrifuge must be carefully balanced which is achieved by a combination of sample and balance tube, all of which have the same weight. Small differences in mass of the load can result in a large force imbalance when the rotor is at high speed. Centrifuges have a feature where when imbalance is detected, the automatic rotor imbalance detection feature discontinues the run.

iFuge M12 – Table Top Genius

iFuge M12 – Table Top Genius

It is mandatory to check rotor and lid locking mechanisms is prior to starting the process. Centrifuge rotors should never be touched while moving, because a spinning rotor can cause serious injury. Modern centrifuges generally have features that prevent accidental contact with a moving rotor as the main lid is locked during the run.

iFuge M18P– Table Top Genius

iFuge M18P– Table Top Genius

Neuation provides a large range of Micro Centrifuges for several different kinds of applications in research labs. The Micro Centrifuge range from a personal one to a big refrigerated Micro Centrifuge that can take upto 44 tubes. There are used in cell separation.

About Author:- Johanna Sophia

Johana Sophia

Hi friends, I am interested in writing about science, technology & Web related stuff. Follow me on Twitter, on Google +Johanna, on StumbleUpon and/or become a friend on Facebook.

 

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