Pharma IQ Glossary: Adsorption

Adsorption is defined as the adhesion of atoms, ions, biomolecules or molecules of gas, liquid, or dissolved solids to a surface because of chemical or electrical attraction - typically accomplished with granular activated carbon to remove dissolved organics and chlorine. This process creates a film of the adsorbate (the molecules or atoms being accumulated) on the surface of the adsorbent.