250 µl - 2 ml MICROCENTRIFUGE TUBES WITH CAPS

WIDE SELECTION

These tubes fit all standard microcentrifuges and cover a range from 250 µl to 2.0 ml. Tubes listed in this section all include caps.

WIDE SELECTION

Polypropylene tubes withstand up to 12,00 x g. Polyethylene tubes withstand force to 6,000 x g.

Polystyrene tubes withstand force to 3,000 x g and are useful in lipid fractionation.

WIDE SELECTION

These tubes fit all standard microcentrifuges and cover a range from 250 µl to 1.8 ml. All tubes on this page are sold without caps. Most are available in both polypropylene and polyethylene, and some in polystyrene.

STRENGTH YOU CAN RELY ON

Polypropylene tubes withstand forces to 12,000 x g. Polyethylene tubes withstand forces to 6000 x g. Polystyrene tubes will withstand up to 3000 x g.

QUALITY CONSTRUCTION

All Evergreen microcentrifuge tubes are precision-molded from only premium grade plastic materials. Our stringent Quality Assurance Program checks each production lot hourly for dimensional uniformity, tensile strength, and physical appearance.

We have recently developed in cooperation with Washington university Lipid Research Center a special microcentrifuge tube for use in lipid fractionation studies. It is a 1.5 ml polystyrene tube with a 11 mm high density polyethylene cap. This tube is completely transparent, a feature that is of critical importance here.

Using dextran sulfate to precipitate LDL, followed by centrifugation at 12,000 x g, the HDL is measured in the supernatant and LDL is determined by calculation. In patients with high triglyceride levels (up to 5% of the population) the supernatant may be milky or slightly turbid. If not corrected, this would lead to falsely elevated HDL results. Polypropylene tubes, though contact transparent can mask this turbidity.