What Are Possible Reasons for Rupture of Centrifuge Tube in Experiment?

HAWACH centrifuge tubes are widely used in the bioscience industry, especially in the fields of biochemistry and molecular biology research. HAWACH centrifuge tube technology is mainly used to separate and prepare various biological samples, so many laboratories are inseparable from various types of centrifuge tubes. Different kinds of centrifuge tubes are available, based on the materials, like glass and plastic. Furthermore, the plastic ones can be divided into PS, PP, PC, etc. We can choose the specific one based on the actual experimental needs.

Classifications

In laboratories, glass and plastic centrifuge tubes are commonly used. The plastic centrifuge tubes are more frequently used, compared with the glass ones, as they allow us to check the centrifugation easily with a transparent appearance. However, the shortcomings are easy deformation, short service life, and poor corrosion resistance. Therefore, laboratories generally buy centrifuge tubes frequently. HAWACH will introduce each type of centrifuge tube separately in the following.

  1. PE (Polyethylene/Ethylene): it is opaque and others are most translucent. It will become soft easily at high temperatures, but it can be used for acetic acid, acetone, hydrochloric acid, etc.
  2. PF (polyfluorine): it is translucent and can withstand super-low temperatures. For example, it can be used in an experimental environment of -100℃-140℃.
  3. PP (polypropylene): like PF, it is translucent, with temperature stability and good chemical. But please note, do not use it below 4 ℃ during centrifugation, as it will become brittle at low temperatures.
  4. PS (polystyrene/ene): like PF and PP, it is transparent, which is stable to most aqueous solutions, with high hardness. Please remember it’s not suitable for organic substances. It’s for one-time use for low-speed centrifugation.
  5. PC (polycarbonate): it features excellent transparency and high hardness. It cannot be used for strong acids and alkalis and some organic solvents such as alcohol. It can be sterilized at high temperatures and its main use is ultracentrifugation above 50,000 rpm.
  6. PA (polyamide): it’s a polymer with PP and PE, with a translucent appearance, super stable in chemical properties, but it isn’t resistant to high temperatures.
  7. CAB (Cellulose Acetate Butyl): transparent, can be used for the gradient determination of dilute acids, alkalis, salts, as well as alcohol and sucrose.

The possible reasons for centrifuge tube rupture

Centrifuge tube rupture can occur due to various reasons, and it’s important to understand these potential causes to prevent accidents and ensure safe laboratory practices. Here are some possible reasons for centrifuge tube rupture:

  • Incorrect Material or Quality: Using centrifuge tubes made from inappropriate or low-quality materials that are not compatible with the intended centrifugation conditions.
  • Improper Sealing or Closure: Inadequate sealing of the centrifuge tube cap or closure can lead to leakage or rupture during centrifugation.
  • Excessive Speed or Force: Subjecting the centrifuge tubes to speeds or forces beyond their rated capacity can lead to structural failure and rupture.
  • Overloading: Filling the centrifuge tube beyond its recommended capacity can cause excessive stress on the tube, leading to rupture.
  • Damage or Weakness in Tube: Tubes that have been previously damaged, have hairline cracks, or have weakened due to repeated use may be more prone to rupture.
  • Temperature Extremes: Extreme temperatures, either too hot or too cold, can weaken the material of the centrifuge tube, making it more susceptible to rupture.
  • Chemical Incompatibility: Contact with chemicals or solvents that are not compatible with the material of the centrifuge tube can cause weakening, leading to rupture.
  • Aggressive Centrifugation Protocols: Using high-speed or extended-duration centrifugation protocols without considering the limitations of the centrifuge tubes.
  • Incorrect Rotor or Adapter: Using a rotor or adapter that is not compatible with the size or type of centrifuge tubes being used can lead to improper loading and subsequent rupture.
  • Improper Handling or Storage: Dropping or mishandling centrifuge tubes, or storing them in a manner that could lead to physical damage or degradation.
  • Age or Wear and Tear: Over time, centrifuge tubes can become brittle or weakened due to repeated use, leading to an increased risk of rupture.
  • Manufacturing Defects: Rarely, manufacturing defects in centrifuge tubes can lead to structural weaknesses that may result in rupture.

To prevent centrifuge tube rupture, it’s crucial to follow manufacturer guidelines for tube selection, loading, and centrifugation conditions. Regular inspection of tubes for signs of damage or wear is also important. Additionally, being mindful of the chemicals and solutions being used, as well as adhering to recommended protocols, can help ensure safe centrifugation practices.