TN62: Reducing Carbonate Interference in Anion Determinations with the Carbonate Removal Device (CRD): Artificial Drinking Water Sample

Instrument Type: IC

Carbonate can interfere with accurate quantification of adjoining anions, such as sulfate. Here we show the efficient removal of the carbonate peak from a synthetic drinking water sample using the Dionex CRD 200 device. In this example, the artificial drinking water sample (#2) contains: 0.1 mg/L of fluoride, nitrite, chlorate, bromide, and phosphate; 5 mg/L nitrate; 50 mg/L sulfate; 100 mg/L chloride and carbonate.