Please use this column with suppressor type ion chromatography system.

Recently ozonation has been applied for sterilization of drinking water. Ozonation transforms part of bromide to bromate which is a potential carcinogen. So, it is very important to measure bromate in drinking water. A modeldrinking water with bromate was measured by suppressed coductivity with IC SI-50 4E.


Sample : Model drinking water, 500 μL
1. 0.1 mg/L F^-
2. 0.003 mg/L BrO₃^-
3. 20 mg/L Cl^-
4. 0.1 mg/L Br^-
5. 10 mg/L NO₃^-
6. 10 mg/L SO₄^2-


1. : 0.02 mg/L
2. : 0.01 mg/L
3. : 0.003 mg/L

Column       : Shodex IC SI-50 4E (4.0 mm I.D. x 250 mm)
Eluent       : 3.2 mM Na2CO3 + 1 mM NaHCO3 aq.
Flow rate    : 0.8 mL/min
Detector     : Suppressed conductivity
Column temp. : 25 °C