Dionex™ IonPac™ AS23 IC Columns

Measure trace bromate and other oxyhalides in drinking water, ground water, wastewater, and other diverse sample matrices with the Thermo Scientific™ Dionex™ IonPac™ AS23 carbonate eluent anion-exchange column. The column is specifically designed and recommended for the determination of trace bromate, a toxic byproduct of ozone disinfection, in drinking water matrices. The column's high capacity and selectivity facilitate the determination of bromate in drinking water at the low-μg/L level in the presence of high concentration of chloride, sulfate and carbonate. The Dionex IonPac AS23 columns meet the performance requirements of U.S. EPA Methods 300.0 and 300.1.

• Compliance monitoring of common anions and oxyhalides in drinking water as specified in U.S. EPA Method 300.0 and 300.1
• Simple analysis of trace bromate in drinking water matrices using an isocratic carbonate/bicarbonate eluent with suppressed conductivity detection
• Optimized selectivity to ensure low ppb determination of bromate in the presence of very high concentrations of chloride, sulfate, and carbonate
• Separates oxyhalides and common inorganic anions in drinking water, groundwater, wastewater and other diverse sample matrices
• High capacity for the analysis of most drinking water without the use of sample pretreatment or preconcentration
• Solvent compatibility for easy column cleanup after the analysis of samples with hydrophobic components

• 4 x 250 mm, 2 x 250 mm analytical columns
• 4 x 50 mm, 2 x 50 mm guard columns
• Longer 250 mm columns facilitate higher resolution separations of more complex sample matrices
• Smaller i.d. columns provide higher mass sensitivity, eluent and reagent conservation and lower operating costs