Centrifuge tube

Centrifuge tube (centrifugal tube or centrifuge tube), tubular sample container, can have a sealing cap or a gland.

type

according to size

Large number of centrifuge tubes (500mL, 250mL)

Ordinary centrifuge tubes (50mL, 15mL)

Microcentrifuge tubes (2mL, 1.5mL, 0.65mL, 0.2mL)

according to the shape of the bottom

Conical centrifuge tubes, with a tapered bottom, are the most used type of centrifuge tubes

flat bottom centrifuge tube

round bottom centrifuge tube

According to the lid closing method

Gland centrifuge tube, a centrifuge tube sealed by pressing, commonly found in microcentrifuge tubes

Screw cap centrifuge tubes can be divided into flat caps (the top of the cap is flat) and plug caps (the top of the cap has a plug shape)

According to material

Plastic centrifuge tube, glass centrifuge tube, 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 sample can be taken out by puncture . 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 include 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.

Plastic centrifuge tubes are generally disposable experimental equipment and are not recommended for repeated use. In order to save money, PP centrifuge tubes can be reused as appropriate, but they need to be thoroughly sterilized by high temperature and high pressure to ensure the scientific nature of the experimental results. Centrifuge tubes made of PE cannot be sterilized by high temperature and high pressure.

Plastic centrifuge tube packaging or instructions will generally indicate the centrifugal force that the product can withstand or the recommended speed. In order to ensure the safety of the experiment and the reliability of the results, you should choose a centrifuge tube that meets the speed requirements of the experiment.

2. Glass centrifuge tube

using glass tubes , the centrifugal force should not be too large, and rubber pads are needed to prevent the tubes from breaking. Generally, glass tubes are not used in high-speed centrifuges. The cap of the centrifuge tube is not closed enough, and 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 corrosion from these chemicals .

Centrifuge tube (centrifugal tube or centrifuge tube), tubular sample container, can have a sealing cap or a gland.

type

according to size

Large number of centrifuge tubes (500mL, 250mL)

Ordinary centrifuge tubes (50mL, 15mL)

Microcentrifuge tubes (2mL, 1.5mL, 0.65mL, 0.2mL)

according to the shape of the bottom

Conical centrifuge tubes, with a tapered bottom, are the most used type of centrifuge tubes

flat bottom centrifuge tube

round bottom centrifuge tube

According to the lid closing method

Gland centrifuge tube, a centrifuge tube sealed by pressing, commonly found in microcentrifuge tubes

Screw cap centrifuge tubes can be divided into flat caps (the top of the cap is flat) and plug caps (the top of the cap has a plug shape)

According to material

Plastic centrifuge tube, glass centrifuge tube, 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 sample can be taken out by puncture . 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 include 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.

Plastic centrifuge tubes are generally disposable experimental equipment and are not recommended for repeated use. In order to save money, PP centrifuge tubes can be reused as appropriate, but they need to be thoroughly sterilized by high temperature and high pressure to ensure the scientific nature of the experimental results. Centrifuge tubes made of PE cannot be sterilized by high temperature and high pressure.

Plastic centrifuge tube packaging or instructions will generally indicate the centrifugal force that the product can withstand or the recommended speed. In order to ensure the safety of the experiment and the reliability of the results, you should choose a centrifuge tube that meets the speed requirements of the experiment.

2. Glass centrifuge tube

using glass tubes , the centrifugal force should not be too large, and rubber pads are needed to prevent the tubes from breaking. Generally, glass tubes are not used in high-speed centrifuges. The cap of the centrifuge tube is not closed enough, and 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 corrosion from these chemicals .