Description

Filtration is a membrane separation technology, which is characterized by the use of asymmetric porous membrane, depending on the size of the molecules to the separation of macromolecules in solution and small molecule materials. The centrifugation method can be used to remove bacteria and particles from the sample, HPLC sample preparation, isolated cells from the culture medium, and separation of DNA from agarose gel or polyacrylamide gel. Maximum RCF 5000Xg. Non-pyrogenic, non- DNA enzyme and RNA enzymes.

Filtration centrifuge tube by centrifugal force, so that the solution of small molecules in solution and the solvent through the filtration membrane is collected in the filtrate collection flask, and macromolecular solute is filtration membrane closure tube in the sample concentration with centrifuge filter. The filtrate was stored in the receiver tube after centrifugation, thereby eliminating the need for separation of storage tube. The method is characterized by simple filtration speed.