赛默飞世尔Thermo Fisher X25 NMR tub

离心技术基础

if improperly filled. Always balance the rotor properly. Use a precision scale for most work. Always balance the tube with a medium that is identical to that being centrifuged, i.e. do not balance an alcohol solution with water, or a dense sucrose solution

A quick RNA mini-prep for Neurospora mycelial cultures

. Mortar and pestle should be washed after every sample. 4. Working quickly before powder can thaw, pour or spoon ground mycelia into 15 ml round bottom Sarstedt tube (Sarstedt tubes #60.540, Princeton, NJ) containing 8 ml of E buffer at room

Centrifugation

without external tubes. For biological work, the tubes are divided into functional groups, made of regular glass, Corex glass, nitrocellulose, or polyallomer. Regular glass centrifuge tubes can be used at speeds below 3,000 RPM, that is in a standard clinical