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Centrifuge tubes range a lot in terms of quality and performance. There are multiple factors that contribute to the overall quality of the tube that we will discuss in this article. It’s important to take into account your own requirements of a tube medical and then choose a tube that is going to best suit these requirements.

Relative Centrifugal Force

A centrifuge tube will have a maximum speed rating at which the tube can withstand. The speed capacities of tubes will vary greatly between brands so it is important to determine what speeds you will require and go for a tube that will be able to withstand these speeds. When looking at speeds, it is best to look at RCF rather than RPM as RCF takes into account the gravitational force being applied. RPM, on the other hand, only takes into account the rotors spinning speed.

Pricing can vary depending on the maximum RCF a tube can handle so firstly, work out the RCF you will require and find a tube that fits to these requirements. If you are not dealing with high speeds, you may be able to choose a tube with a lower RCF to save on costs of the tubes. If you are a volume user, any potential savings on the tubes can add up to a sizeable amount over time.

Chemical Compatibility

Depending on the type of material the centrifuge tube is made out of, it will obviously have different resistance capabilities to different chemicals. It is important to take into account the types of chemicals you will be using and ensure that the tube you choose has satisfactory resistance to these chemicals. Centrifuge tubes are available in an array of materials such as polypropylene (PP), polyallomer (PA), polycarbonate (PC), and polyethylene terephthalate (PET). PP is a popular type of tube due to its ability to be used for high speed applications, is autoclavable, and is resistance to most organic solvents. Be sure to check a chemical resistance chart to determine what tube will be most suitable for your laboratory.

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