Sodium chloride has been used to prepare PBS (Phosphate-buffered saline) solution and lysis buffer. It is used in a wide variety of biochemical applications including creating density gradients, regulating biological functions and as a diluent to increase ionic strength in buffers or culture media.
It has also been used for precipitation of DNA from SDS-containing samples and in the removal of small nucleic acid fragments from plasmid DNA preparations. The use of sodium chloride for isolation of DNA from mammalian cells has been described.
Research or further manufacturing use only, not for food or drug use.