The IonPac^® ATC-3 Anion Trap Column contains a high-capacity, low-efficiency, anion-exchange resin used to remove trace anion contamination from eluents.

The IonPac^® ATC-HC Anion Trap Column is a high-capacity, anion-exchange trap column designed for use with the EG40 or EG50 Eluent Generators. 

The ATC-HC Borate Form Anion Trap Column is a high capacity anion-exchange trap column designed for use with borate eluents.