The IonPac AS19 hydroxide-selective, anion-exchange column is specifically designed for trace bromate in drinking water. Its high capacity and selectivity allow for the determination of bromate in drinking water at the low-µg/L level. The AS19 meets the performance requirements of U.S. EPA Methods 300.0 and 300.1. Recommended hydroxide-selective anion-exchange column for trace bromate in drinking water matrices. High capacity: 350 µeq per column (4 × 250-mm column). Meets or exceeds performance requirements of U.S. EPA Methods 300.0 and 300.1. Simplified Reagent-FreeTM Ion Chromatography (RFICTM ) operation provided by the RFIC Eluent Generator. Requires only a deionized water source to produce potassium hydroxide eluent. Eluent suppression using the ASRS® ULTRA II provides Reagent-FreeTM IC operation with low backgrounds and enhanced analyte sensitivity. Operates at ambient or elevated temperatures. Column selectivity is optimized for a 30 °C operating temperature to ensure reproducible retention times in all environmental conditions. Is compatible with organic solvents to enhance analyte solubility, modify column selectivity, or clean the column effectively.
The IonPac AS19 high-capacity, hydroxide-selective, anion-exchange column is designed for the analysis of oxyhalides and the 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. The key application for the IonPac AS19 anion-exchange column is the determination of trace bromate in drinking water matrices using a potassium hydroxide gradient with suppressed conductivity detection. This separation meets the performance requirements specified in U.S. EPA Method 300.0 and Method 300.1 for the determination of oxyhalides produced as by-products in disinfection of drinking water. The selectivity of the AS19 ensures that bromate, a toxic by-product in ozone disinfection, can be quantified at low-mg/L concentrations using suppressed conductivity detection even in the presence of very high concentrations of chloride, sulfate, and carbonate. The AS19 allows the analysis of most drinking water, disinfected with ozone, without the use of sample pretreatment or preconcentration. The AS19 column is ideally used with RFIC technology for automatic eluent generation. Use the Anion Self-Regenerating Suppressor (ASRS ULTRA II) with the AS19 column for eluent suppression.
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