IC Determination of Halogens in Electronic Products with Oxygen Bomb Combustion

The sample was combusted in oxygen bomb and the halogens were absorbed in water.The contents of 3 halogen ions (i.e.F-,Cl- and Br-) in water were determined by IC.The Metrosep A Supp 4 anion chromatographic column was used for separation,and a mixture of 1.8 mmol·L-1 Na2CO3 and 1.7 mmol·L-1 NaHCO3 was used as eluent.Values of detection limit (3S/N) of the method found were 4.0 μg·L-1 for F-,5.6 μg·L-1 for Cl-,20.5 μg·L-1 for Br-.The proposed method has been used in determinations of halogen in electronic products.