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Your cart is empty.The G-Tube Flat Top Microcentrifuge Tube is virtually transparent 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, the 0.6mL, 1.5mL and 2.0mL G-Tube has the same chemical resistant quality as standard tubes, but they're sturdier and virtually transparent to give a better view. The flat top cap is easy to open and still provides a maximum secure seal. All three volumes are available in siliconized material. Siliconized G-Tubes are not recommended for autoclaving.
Gary Kubiak
Reviewed in the United States on April 13, 2018
I ran out of tubes during field work and ordered these (0.6 ml) for some blood sampling. The tubes seem fine and close nicely. However, there are two major issues. 1) In the first day of using these tubes, about a third of the blood samples in them would not separate in the centrifuge, and plasma from these samples returned strange parameter values. I didn't have any of these issues with my basic ThermoFisher brand tubes. Not sure what may or may not be in the Bio Plas ones, but I will not be using them for my samples anymore. 2) There is no frosted area on the side of the tube, and they are highly polished/slick feeling. Writing with two different types of marker comes off quite easily which could lead to unlabelled samples. All in all, I'd recommend trying a different brand of microcentrifuge tube.
Cheryl E.
Reviewed in the United States on February 19, 2016
Some of these are defective....they have weird plastic pieces hanging off of the top piece that shouldn't be there. Otherwise, very affordable and functional!
DMAN
Reviewed in the United States on November 19, 2015
good quality product
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