Microcentrifuge tubes are small, usually polypropylene tubes for spinning and storing samples in molecular biology, biochemistry and clinical work. This category covers sizes from 250 µL and 0.5 mL through 0.6, 1.5 and 2.0 mL to 5 mL macro tubes, with attached snap caps, flat tops, lock-top caps and screw caps with O-rings. Options include sterile or non-sterile, graduated or plain, natural, amber, black and colored tubes, self-standing and conical bottoms, low retention tubes and lots certified for the absence of RNase, DNase and pyrogens. Racks and tube-and-pestle sets are listed too.

Choose the volume first, then check that the tube fits your centrifuge rotor or the adapters you have. Pick a screw cap with an O-ring for heating, freezing or shipping, where a snap cap could open, and a snap cap for quick bench work. Use sterile tubes certified for the absence of nucleases for RNA and DNA work, amber or black tubes for light-sensitive samples, and low retention tubes when small volumes must not be lost on the tube wall. Check the maximum g-force rating against your protocol.

Microcentrifuge: common questions

Will 1.5 mL tubes fit any microcentrifuge?

Standard 1.5 mL and 2.0 mL tubes fit the rotors of most microcentrifuges. Smaller 0.5 mL and 0.2 mL tubes usually need adapters or a rotor with matching holes, and 5 mL tubes need a rotor made for them. Screw-cap and self-standing tubes can have a different outer shape, so check the tube dimensions against your rotor before ordering a large quantity.

Should I use snap-cap or screw-cap microtubes?

Snap caps are quick to open and close and suit routine pipetting and short spins. Screw caps with an O-ring seal more securely, so they are a better choice for heating or boiling samples, freezing and thawing, long-term storage and shipping, where pressure or temperature changes could open a snap cap. Screw-cap tubes generally cost more per tube.

What are low retention microcentrifuge tubes?

Low retention tubes have an inner surface made or treated so that less liquid, protein or nucleic acid sticks to the tube wall. They help when you work with small volumes, dilute samples or costly reagents, because more of the sample can be recovered. For ordinary buffers and larger volumes, standard tubes are usually adequate.

Microcentrifuge

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  1. 1.5mL G-Tube, Flat Top Microcentrifuge Tube, Orange, PK500
    SKU: 4036-PK
    Manufacturer: Bio Plas
    The G-Tube™ Flat Top Microcentrifuge Tube is virtuallytransparent and far exceeds the toughness of any microcentrifuge tubes. When the G-Tube™ Flat Top Microcentrifuge Tube cap is closed there will be an audible "snap" that indicates a secure closure has been formed.Made of tough, clear, proprietary formulated polypropylene, the0.6mL, 1.5mL and 2.0mLG-Tube™ has the same chemicalresistant quality as standardtubes, but they're sturdier andvirtually transparent to give abetter view. The flat top cap iseasy to open and still provides amaximum secure seal. All three volumes are available in siliconized material. Siliconized G-Tubes™ are not recommended for autoclaving. The G-Tube™ is built for highimpact usage and willwithstand over 30,000 x g whenspun. Thicker walls make thisthe tube of choice for extreme stress, high spinning speeds, autoclaving, boiling, chemical resistance and freezing. Willwithstand temperature rangesof -80°C (-112°F) to 121 °C(250°F) (500 per PK)
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    was $23.28 Special Price $20.37
  2. 0.6mL G-Tube, Flat Top Microcentrifuge Tube
    SKU: 4042-PK
    Manufacturer: Bio Plas
    G-Tube Premium Flat Top Microcentrifuge Tube 0.6mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 30000xg forces. Textured writing surface on top of caps. Non-wettable walls. Yellow color. (500 per PK)
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    was $23.28 Special Price $20.37
  3. 0.6mL G-Tube, Flat Top Microcentrifuge Tube, Blue, PK500
    SKU: 4043-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 0.6mL. Flat top lid forms an extra-tight seal that will not come open during processing. With textured writing surface on top of the caps and needle access. Walls are non-wettable preventing liquids from adhering to the sides. (500 per PK)
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    was $23.28 Special Price $20.37
  4. 0.6mL G-Tube, Flat Top Microcentrifuge Tube
    SKU: 4047-PK
    Manufacturer: Bio Plas
    G-Tube Premium Flat Top Microcentrifuge Tube 0.6mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 30000xg forces. Textured writing surface on top of caps. Non-wettable walls. Lavender color. (500 per PK)
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    was $23.28 Special Price $20.37
  5. 2.0mL G-Tube, Flat Top Microcentrifuge Tube
    SKU: 4052-PK
    Manufacturer: Bio Plas
    G-Tube Premium Flat Top Microcentrifuge Tube 2.0mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 30000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 2.0mL. Yellow color. (500 per PK)
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    was $24.98 Special Price $21.86
  6. 2.0mL G-Tube, Flat Top Microcentrifuge Tube, Green, PK500
    SKU: 4054-PK
    Manufacturer: Bio Plas
    G-Tube Premium Flat Top Microcentrifuge Tube 2.0mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 30000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 2.0mL. Green color. (500 per PK)
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    was $24.98 Special Price $21.86
  7. 2.0mL G-Tube, Flat Top Microcentrifuge Tube, Amber, PK500
    SKU: 4058-PK
    Manufacturer: Bio Plas
    2.0mL G-Tube, Flat Top Microcentrifuge Tube, Amber, PK500 (500 per PK)
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    was $24.98 Special Price $21.86
  8. 2.0mL G-Tube, Flat Top Microcentrifuge Tube
    SKU: 4059-PK
    Manufacturer: Bio Plas
    G-Tube Premium Flat Top Microcentrifuge Tube 2.0mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 30000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 2.0mL. Rainbow color. (500 per PK)
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    was $29.77 Special Price $26.05
  9. 1.8mL Microcentrifuge Tube
    SKU: 4155-PK
    Manufacturer: Bio Plas
    Snap-Cap Microcentrifuge Tube Volume: 1.8mL. Tough virgin polypropylene construction withstands rugged G-forces of high speed centrifugation. Snap-Cap attached to each tube. Entire unit autoclavable at 121[degree]C at 15psi for 15 minutes. Color: natural. (1000 per PK)
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    was $37.95 Special Price $33.21
  10. 1.8mL Microcentrifuge Tube
    SKU: 4157-PK
    Manufacturer: Bio Plas
    Snap-Cap Microcentrifuge Tube Volume: 1.8mL. Tough virgin polypropylene construction withstands rugged G-forces of high speed centrifugation. Snap-Cap attached to each tube. Entire unit autoclavable at 121[degree]C at 15psi for 15 minutes. Color: yellow. (1000 per PK)
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    was $37.95 Special Price $33.21
  11. 1.8mL Microcentrifuge Tube
    SKU: 4158-PK
    Manufacturer: Bio Plas
    MCT POLYPRO BLU 1.8ML 1000/PKBio Plas 1.8mL microcentrifuge tube blue. (1000 per PK)
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    was $37.95 Special Price $33.21
  12. Siliconized 0.6mL G-Tube, Flat Top Microcentrifuge Tube, Natural, PK500
    Manufacturer: Bio Plas
    Siliconized G-Tube Flat-Top Microcentrifuge Tube Size: 0.6mL. Safe sample deposit. Withstands 30000xg forces. Molded from siliconized virgin polypropylene with extremely low surface adhesion and maximum sample recovery. Color: natural. (500 per PK)
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    was $44.35 Special Price $38.81
  13. 1.5mL Flat Top Microcentrifuge Tube, Yellow, PK500
    SKU: 4302-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 1.5mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 22000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 1.5mL. Yellow color. (500 per PK)
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    was $22.18 Special Price $19.41
  14. 1.5mL Flat Top Microcentrifuge Tube, Green, PK500
    SKU: 4304-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 1.5mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 22000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 1.5mL. Green color. (500 per PK)
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    was $22.18 Special Price $19.41
  15. 1.5mL Flat Top Microcentrifuge Tube
    SKU: 4305-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 1.5mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 22000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 1.5mL. Amber color. (500 per PK)
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    was $22.18 Special Price $19.41
  16. 1.5mL Flat Top Microcentrifuge Tube
    SKU: 4306-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 1.5mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 22000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 1.5mL. Orange color. (500 per PK)
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    was $22.18 Special Price $19.41
  17. 1.5mL Flat Top Microcentrifuge Tube
    SKU: 4307-PK
    Manufacturer: Bio Plas
    Flat Top Microcentrifuge Tube 1.5mL. Flat top lid forms extra-tight seal easy-to-open with thumb pressure. Withstands 22000xg forces. Textured writing surface on top of caps and sides. Non-wettable walls. Graduated from 0.1 to 1.5mL. Lavender color. (500 per PK)
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    was $22.18 Special Price $19.41
  18. 64 Well Microcentrifuge Tube Rack, Natural, PK5
    SKU: 80-PK
    Manufacturer: Bio Plas
    64 PLAC MIC RAC POL NAT. PK5Bio Plas 64-well micro tube rack natural for Bio Plas 0.5mL 1.5mL and 2.0mL screw cap and snap cap microcentrifuges. (5 per PK)
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    was $41.86 Special Price $30.48
  19. 64 Well Microcentrifuge Tube Rack, Assorted, PK5
    SKU: 81-PK
    Manufacturer: Bio Plas
    64 PLAC MIC RAC POL ASRT PK5Bio Plas 64-well micro tube rack assorted colors for Bio Plas 0.5mL 1.5mL and 2.0mL screw cap and snap cap microcentrifuges. (5 per PK)
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    was $48.88 Special Price $35.59
  20. 64 Well Microcentrifuge Tube Rack, Orange, PK5
    SKU: 84-PK
    Manufacturer: Bio Plas
    64 PLAC MIC RAC POL ORAN PK5Bio Plas 64-well micro tube rack orange for Bio Plas 0.5mL 1.5mL and 2.0mL screw cap and snap cap microcentrifuges. (5 per PK)
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    was $48.88 Special Price $35.59
  21. Siliconized 0.6mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - Individually Wrapped
    Manufacturer: Bio Plas
    Siliconized G-Tube Flat-Top Microcentrifuge Tube Size: 0.6mL. Safe sample deposit. Withstands 30000xg forces. Molded from siliconized virgin polypropylene with extremely low surface adhesion and maximum sample recovery. Sterile. Individually wrapped. Color: natural. (250 per PK)
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    was $85.52 Special Price $74.82
  22. Siliconized 1.5mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - 50/Bag-5 Bags/Pk
    Manufacturer: Bio Plas
    Siliconized 1.5mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - 50/Bag-5 Bags/Pk (250 per PK)
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    was $95.05 Special Price $83.17
  23. Siliconized 2.0mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - 50/Bag-5 Bags/Pk
    Manufacturer: Bio Plas
    Siliconized 2.0mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - 50/Bag-5 Bags/Pk (250 per PK)
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    was $102.70 Special Price $89.86
  24. Siliconized 2.0mL G-Tube, Flat Top Microcentrifuge Tube - Sterile - Individually Wrapped
    Manufacturer: Bio Plas
    2.0ML SIL ST GT FLTP MC N250PKBio Plas siliconized flat top microcentrifuge tube 2.0mL sterile. (250 per PK)
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    was $101.35 Special Price $88.68
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