Medical consumables centrifuge tube, tubular sample container, can be with sealing cap or pressure cap. According to the material, it can be divided into plastic centrifuge tube, glass centrifuge tube and steel centrifuge tube.

　　1. Plastic centrifuge tube

　　The advantage of the plastic centrifuge tube is that it is transparent or translucent, its hardness is small, and the gradient can be taken out by puncturing. The disadvantage is that it is easy to deform, has poor corrosion resistance to organic solvents, and has a short service life.

　　Plastic centrifuge tubes have tube caps, which are used to prevent sample leakage, especially when used for radioactive or highly corrosive samples. It is very important to prevent sample leakage; the tube cap also has a role to prevent sample volatilization And support the centrifuge tube to prevent the deformation of the centrifuge tube. When choosing this point, pay attention to check whether the tube cover is tight, and whether it can be tightly closed during the test, so as to achieve no leakage when inverted;

　　We all know that in plastic centrifuge tubes, commonly used materials are polyethylene (PE), polycarbonate (PC), polypropylene (PP), etc. Among them, polypropylene PP tubes have relatively better performance, so we are choosing plastic centrifuge tubes. When possible, consider polypropylene plastic centrifuge tubes.

　　2. Glass centrifuge tube

　　When using glass tubes, the centrifugal force should not be too large, and rubber pads are needed to prevent the tubes from breaking. High-speed centrifuges generally do not use glass tubes. If the seal of the centrifuge tube cover is not good enough, the liquid cannot be filled up (for high-speed centrifuges and angle rotors are used) to prevent overflow and loss of balance. The consequence of spillage is to pollute the rotor and the centrifugal chamber, affecting the normal operation of the sensor. During ultracentrifugation, the centrifuge tube must be filled with liquid, because ultracentrifugation requires a high vacuum, and only filling can prevent the centrifuge tube from deforming.

　　3. Steel centrifuge tube

　　The steel centrifuge tube has high strength, no deformation, heat resistance, frost resistance, and chemical corrosion resistance. It is also widely used, but it should also avoid contact with strong corrosive chemicals, such as strong acid and strong alkali. Try to avoid the corrosion of these chemicals.