Thermo Scientific 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.

Analysis of Trace Level Bromate in Drinking Water

• 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

Multiple Formats Available for Application Flexibility

• 4x250mm, 2x250mm analytical columns
• 4x50mm, 2x50mm guard columns
• Longer 250mm 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

Note: For simple, accurate eluent preparation, use the Dionex IonPac AS23 Eluent Concentrate.

Specifications

• Anion Exchange Capacity: 320 μeq
• Crosslinking: 55% DVB
• Column Capacity: 320 μeq
• Column Chemistry: Carbonate/Bicarbonate
• For Use With (Application): Anion Exchange
• Ion Exchange Group: Alkanol Quaternary Ammonium Ion
• Max. Pressure: 3000 psi (207 bar)
• Solvent Compatibility: 0 to 100% HPLC Solvents
• Stationary phase: IonPac AS23
• Format: Standard Bore
• Packing Material: Polymeric