How to Choose A Centrifuge Tube
Centrifugal machines are often used in the laboratory to separate some samples. At this time, centrifuge tubes are used to store samples that need to be manipulated. Different needs require different centrifuge tubes, so how to choose a centrifuge tube? Next, let’s learn about the selection of centrifuge tubes.
Centrifuge Tube Materials
- First of all, the choice of centrifuge tube material is very important. It will come in glass, plastic, and stainless steel.
- The glass material is not easy to be deformed, and the color is transparent and clear, but the glass is fragile and cannot be used in a high-speed centrifuge. Otherwise, it is easy to break, lose the sample, and possibly damage the centrifuge.
The plastic centrifuge tube is transparent or translucent, which can visually see the centrifugation of the sample, and is widely used in the laboratory. There are many kinds of centrifuge tubes made of plastic, and there are many materials on the market to choose from.
- The PE material of the centrifuge tube is chemically stable, but the transparency is not good, and it is easy to become soft at high temperatures.
- The chemical properties of PC are not as stable as PE, and it is not resistant to solutions such as strong acids and alkalis, but its transparency and hardness are better, and it is resistant to high temperatures and can be sterilized at high temperatures. It is mainly used for ultracentrifugation above 50,000 rpm.
- PA is not resistant to high temperatures and is a translucent material, but its chemical properties are very stable.
- PP is the best material choice for plastic centrifuge tubes. It is a translucent material with stable chemical properties and high-temperature sterilization. When used with centrifuges, PP tubes perform better, so when choosing plastic centrifuge tubes, consider polypropylene PP plastic centrifuge tubes as much as possible.
- The stainless steel centrifuge tube has high strength and is not easy to deform. Its chemical properties are stable. It can resist heat, frost, and chemical corrosion, and it is also a good choice.
Centrifuge Tube Capacity
- The next step is to choose a centrifuge tube capacity that meets your experimental needs. Centrifuge tubes are generally available in micro, ordinary, and large-capacity sizes.
- Micro-centrifuge tubes have 1.5mL and 2mL capacities. They are often used for the separation of trace reagents and are often used in molecular biology micro-manipulation experiments.
- The standard tubes are the most common centrifuge tubes in laboratories, they have 25mL and 50mL capacities.
- Large-volume bottles have 250mL and 500mL capacities. They are the centrifugal choice for high-volume cell harvesting, pelleting, and protein purification.
- The selection of the centrifuge tube should also pay attention to the bottle cap, and pay attention to check the tightness of the tube cap to prevent liquid leakage during the experiment.
- Centrifuge tubes also have different bottom shapes for different experimental needs. There are round bottoms, flat bottoms, and V bottoms.
The above are some aspects of choosing centrifuge tubes, I hope to help you. Hawach is all high-quality centrifuge tubes produced using UPS 6-grade polypropylene as the material. We have confidence in our products and look forward to working with you.