Equipped with rotary frozen device, namely Scientz – 1LS centrifugal concentration meter, by adopting the combination of centrifugal force, vacuum and accelerate the method to make samples of solvent evaporation, so, reach the role of concentrated samples.It can be a variety of rotor, can provide large quantities of small volume concentration, which can be widely used in biology, microbiology, biochemistry, pharmaceutical research and analytical chemistry, and many other aspects.