Shimadzu DGU-12A Degasser

This type of Degassing Unit is installed between the mobile phase bottle and solvent delivery pump and is so widely used that it is commonly called a Degassing Unit. These Degassing Units maintain a vacuum pressure on the outside of a resin membrane tube and utilize the permeability of the membrane to remove smaller molecules, such as oxygen and nitrogen, from the mobile phase solution. Because they are able to remove about 70 to 95 % of the air, they are able to prevent problems with bubble formation in flow lines, even for gradients, and they are suited to certain high-sensitivity detection methods.