Polypropylene Centrifuge Tubes

Polypropylene centrifuge tubes are laboratory consumables used for various applications in biological, biochemical, and clinical laboratories. They are typically cylindrical in shape with a conical bottom, designed to withstand the rigors of centrifugation, which involves spinning samples at high speeds to separate components based on their density.


Polypropylene centrifuge tubes are made from polypropylene, a thermoplastic polymer that offers excellent chemical resistance, durability, and transparency. They are available in various sizes, ranging from small microcentrifuge tubes (e.g., 0.5 mL, 1.5 mL) to larger tubes (e.g., 15 mL, 50 mL) to accommodate different sample volumes. They often come with tight-fitting screw caps or snap-on caps to ensure secure sealing and prevent sample leakage during centrifugation.

2ml Microcentrifuge tubes Centrifuge Tubes2ml Microcentrifuge tubes(U bottom) 2ml Microcentrifuge tubes


  1. Chemical resistance: Polypropylene centrifuge tubes are resistant to a wide range of chemicals, including acids, bases, and organic solvents, making them suitable for use with various types of samples.
  2. Durability: Polypropylene is a tough and durable material that can withstand high centrifugal forces without deformation or breakage, ensuring the integrity of the samples.
  3. Transparency: They are transparent, allowing visual inspection of the sample inside, which is particularly useful for monitoring sample separation during centrifugation.
  4. Conical bottom: The conical bottom design allows for efficient pellet formation and easy retrieval of the pellet after centrifugation.
  5. Cap options: Polypropylene centrifuge tubes usually come with screw caps or snap-on caps that provide a secure seal to prevent sample leakage and contamination.

Applications of Polypropylene Centrifuge Tubes

Polypropylene centrifuge tubes are widely used in various laboratory applications, including but not limited to:

  1. Sample preparation: They are used for centrifugation of biological samples, such as cell cultures, blood, urine, and other bodily fluids, to separate components based on their density, such as pelleting cells, precipitating proteins, or isolating nucleic acids.
  2. Storage: It can also be used for long-term storage of samples, as it’s resistant to a wide range of chemicals and can be stored at low temperatures, such as in freezers.
  3. Chemical and biochemical assays: They are used in various assays, such as enzyme assays, protein purification, and DNA extraction, where sample separation and processing are critical.
  4. Clinical diagnostics: Commonly used in clinical laboratories for various diagnostic tests, such as blood chemistry, hematology, and microbiology, to process and analyze patient samples.

In summary, polypropylene centrifuge tubes are durable, chemically resistant, transparent, and conical-bottomed tubes used in a wide range of laboratory applications for sample preparation, storage, and analysis. They are an essential tool for researchers, clinicians, and laboratory personnel working in various fields of science and medicine.