DETERMINATION OF INORGANIC OXYHALIDE DISINFECTION BY-PRODUCTS IN DRINKING WATER USING ION CHROMATOGRAPHY INCORPORATING THE

1.1 This method covers the determination of inorganic oxyhalide disinfection by-product anions in reagent water, surface water, ground water, and finished drinking water. In addition, bromide can be accurately determined in source or raw water and it has been included due to its critical role as a disinfection by-product precursor. Bromide concentration in finished water can differ due to numerous variables which can influence the concentration. Since this method, prior to the addition of the postcolumn reagent (PCR), employs the same hardware as EPA Method 300.1 (1), the analysis of the common anions (using EPA Method 300.1, Part A1) can be performed using this instrument setup with the postcolumn hardware attached but “off-line ” and with the appropriate smaller sample loop. Inorganic Disinfection By-products by Conductivity Detection Analyte Comment