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They may vary in capacity from 50 mL down to much smaller capacities used in microcentrifuges used extensively in molecular biology laboratories. Microcentrifuges typically accommodate disposable plastic microcentrifuge tubes with capacities from 250 μL to 2.0 mL. Glass centrifuge tubes can be used with most solvents, but tend to be more ...
Microcentrifuges are specially designed table-top models with light, small-volume rotors capable of very fast acceleration up to approximately 17,000 rpm. They are lightweight devices which are primarily used for short-time centrifugation of samples up to around 0.2–2.0 mL.
A laboratory tabletop centrifuge. The rotating unit, called the rotor, has fixed holes drilled at an angle (to the vertical), visible inside the smooth silver rim. Sample tubes are placed in these slots and the motor is spun. As the centrifugal force is in the horizontal plane and the tubes are fixed at an angle, the particles have to travel ...
Eppendorf, a company with its registered office in Germany, develops, produces and sells products and services for laboratories around the world.. Eppendorf products are used in academic and industrial research laboratories, e.g. in companies in the pharmaceutical, biotech, chemical and food industries.
If we assume a rotor diameter of 20 cm (as in some modern centrifuges [3]), this would correspond to a centripetal acceleration of around 900,000 x g [4] (around 42 times the max speed of a standard, lab benchtop microcentrifuge [5] and between 0.9 to 9 times the max speed of a standard lab ultracentrifuge [6]) or a linear speed of greater than ...
Add 100 μL of each of the above to separate tubes (use microcentrifuge tubes) and add 1.0 mL of Coomassie Blue to each tube. Turn on and adjust a spectrophotometer to a wavelength of 595 nm, and blank the spectrophotometer using 1.5 mL cuvettes or use a mobile smartphone camera (RGBradford method). [9]