Centrifuge tube is a common experimental consumable in laboratory. It is used in conjunction with centrifuge to separate and prepare various biological samples.
The suspension of biological samples is placed in the centrifugal tube, and the centrifuge rotates at high speed to produce huge centrifugal force, so that the tiny particles suspended in the tube (such as organelles, the precipitation of biological macromolecules, etc.) are deposited and separated due to density differences.
How to choose centrifugal tube?
01
Classification by material
Glass centrifuge tube: The glass is fragile, can not be used in high or overspeed centrifuge, only suitable for low speed centrifuge.
Steel centrifugal tube: high strength, no deformation, heat and frost resistance, but use to avoid contact with strong corrosive chemicals.
Plastic centrifugal tube: transparent or translucent, can see the centrifugal situation more directly; The hardness is small, and the gradient can be removed by puncture. With tube cap, can prevent leakage and deformation; The disadvantage is poor resistance to organic solvents and short service life.
In order to ensure the accuracy of experimental results, many laboratories now use plastic centrifugal tubes as disposable consumables. The advantages of plastic centrifugal tubes can better meet the daily centrifugal needs of laboratories and are more widely used.
In plastic centrifugal tube, commonly used materials are polyethylene (PE), polycarbonate (PC), polypropylene (PP), etc., among which, polypropylene (PP) has more outstanding performance, so it has become the first choice for centrifugal tube users.
02
Classification by capacity size.
Microcentrifuge tube: 0.2/0.5/1.5/2ml, often used with small centrifuge to separate a small amount of experimental reagents.
Small capacity centrifugal tube: 15/50ml, is commonly used in the laboratory centrifugal tube specifications.
