ISPE Glossary of Pharmaceutical and Biotechnology Terminology

Print this page         
Find Definition by Term and/or Language
Term Language (Optional)
Browse All Terms
Beginning With By Language
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z :: All English


Ion exchange resins are usually bead-like spherical materials with an affinity for particular ions. Cation exchange resins made of styrene and divinylbenzene containing sulfonic acid groups will exchange hydrogen ions for any cations they encounter. Similarly, anion exchange resins made of styrene and divinylbenzene containing quaternary ammonium groups will exchange a hydroxyl ion for any anions.


Any of several solid or semisolid inflammable substances, of natural or synthetic organic origin; usually translucent polymers that do not conduct, that break like glass, and that are soluble in ether, alcohol, and essential oils but not in water. The word is used generically to describe chromatographic media, particularly polymer beads.

Do you have a term that should be included in the glossary?
Submit a term for review


  • Click to go to My Communities of Practice
  • Click to go to My Affiliate or Chapter
  • Click to go to My Profile
Click to go to the Member Gift