Dionex™ IonPac™ AS4 Analytical & Guard Anion-Exchange Columns
Catalog number: 035311
Use newer Thermo Scientific™ Dionex™ IonPac™ AS22 columns as substitutes for Dionex IonPac AS4 Analytical & Guard Anion-Exchange Columns. The Dionex IonPac AS4 is only available in limited quantities for customers who have established validated methods using this column. The Dionex IonPac AS22 column provides fast separation of common inorganic anions in a variety of sample matrices including drinking water, wastewater, process streams, and scrubber solutions using a simple isocratic carbonate/bicarbonate eluent.