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Jiangsu Huida Medical Instruments Co.,Ltd

Centrifuge Tube Classification And Role

Centrifuge tube Definition: Tubular specimen container with seal or gland. Laboratory subjects: mechanical engineering (a subject); laboratory equipment and devices (two subjects); laboratory centrifuge - laboratory centrifuge parts and accessories (three subjects).

Plastic centrifuge tube, glass centrifuge tube, steel centrifuge tube

1, plastic centrifuge tube

The advantages of plastic centrifuge tube is transparent or translucent, and its hardness is small, can be used to remove the sample puncture. Disadvantages are easy to deformation, anti-organic solvent corrosive poor, short service life.

The plastic centrifuge tube has a tube cap that prevents the sample from being leaked, especially when it is used for radioactive or highly corrosive samples. It is important to prevent sample leakage. The cap has a role to prevent sample volatilization As well as support the centrifuge tube, to prevent the centrifuge tube deformation. In the selection of this point should also pay attention to check whether the tight cover, in the test can cover the strict, to reach the inverted no leakage;

We all know that in the plastic centrifuge tube, commonly used materials are polyethylene (PE), polycarbonate (PC), polypropylene (PP), etc., in which the performance of polypropylene PP tube will be relatively good, so we selected plastic centrifugal When taking the tube as much as possible, consider polypropylene plastic tube.

Plastic centrifuge tube is generally a one-time experimental equipment, not recommended repeated use. To save money, PP system centrifuge tube can be reused as appropriate, but need to go through high temperature and pressure completely disinfected to ensure the scientific results of the experimental results. PE material of the centrifuge tube, can not be high temperature and pressure disinfection.

Plastic centrifuge tube packaging or instructions will generally indicate the product can withstand the centrifugal force or recommended speed, in order to ensure experimental safety and reliable results, should be selected with the experimental requirements of the speed requirements of the centrifuge tube.

2, glass centrifuge tube

When using glass tube centrifugal force should not be too large, need to pad rubber pad, to prevent the broken pipe, high-speed centrifuge generally do not use glass tube. Centrifuge tube cover is not good enough, the liquid can not fill (for high-speed centrifuge and the use of angular rotor) to prevent spillover, loss of balance. Spillover effects are contamination of the rotor and centrifugal chamber, affecting the sensor to work properly. Ultra-speed centrifugation, the liquid must be filled with the centrifuge tube, because the need to withdraw from the vacuum, only to fill in order to avoid deformation of the centrifuge tube.

3, steel centrifuge tube

The steel centrifuge tube strength, no deformation, can heat, frost resistance, chemical corrosion, and its application is quite wide, but the same should also avoid contact with strong corrosive chemicals, such as strong acid, alkali and so on. Try to avoid the corrosion of these chemicals.

Cover effect edit

Plastic centrifuge tube with tube cover, tube cover need to cover the strict, to prevent leakage of liquid.

The role of the cap:

1, for radioactive or strong corrosive samples, to prevent leakage of the sample.

2, to prevent the sample volatilization.

3, support the centrifuge tube, to prevent the deformation of the centrifuge tube.


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