The Dionex IonPac AS19 Capillary column is packed with the same material as the equivalent standard bore version (providing the same performance as a 4 mm column), but requires only 1/100th the eluent flow rate. The capillary format provides the advantage of significantly reduced eluent consumption, which helps reduce operating costs.

• High capacity: 240µeq per column (4x250mm)
• Operates at ambient or elevated temperatures with column selectivity optimized for 30°C
• Compatible with organic solvents
• Low background signal and enhanced analyte sensitivity when using the Thermo Scientific™
• Dionex™ Anion Self-Regenerating Suppressor (ASRS™ 300) and a Reagent-Free™ (RFIC™) system
• Analyze a Wide Range of Oxyhalides and Inorganic Anions
• Oxyhalides and common inorganic anions including fluoride, chlorite, bromate, chloride, nitrite, bromide, chlorate, nitrate, phosphate, and sulfate in drinking water, groundwater, wastewater, and other diverse sample matrices.
• Analyzes most drinking water without the use of sample pretreatment or preconcentration.
• Ideal when used with a Reagent-Free™ Ion Chromatography (RFIC)™ system for automatic eluent generation

The key application for this column is the determination of trace bromate in drinking water matrices using a potassium hydroxide gradient with suppressed conductivity detection. The column's selectivity ensures that bromate can be quantified at low µg/L concentrations using suppressed conductivity detection even in the presence of very high concentrations of chloride, sulfate, and carbonate.