Simultaneous ion Chromatographic Determination of ten Inorganic Anions in Drinking Water

Objective: To establish a mew method for quantitative detection of ten inorganic anion sin drinking water including Fluoride,Chlorite,Bromate,Chloride,Nitrite,Bromide,Chlorate,Nitrate,Phosphate,Sulfate at the same time.Method: IC was carried on the ICS-1000 ion chromatograph with IonpacR AS9 chromatographic column using a mixed solution of 9.0mmol/L Na_2CO_3 as absorbing solution.The sampling was performed at a flow rate of 1.0ml/min.The sample was treated with direct sampling.Result: The threshold of detection:0.004-0.0344mg/L.RSD'S obtained were from1.64% to 3.95%,and the recoveries were from 91.6% to 100.3%.Conclusion: The method was proved to be low disturbing,high sensitive,accurate result and simply,operation.It is adapt to various water samples.It was not effect for acid and alkali coexistence ion and border upon ion.It is adapt to determinate ten inorganic anions.