Please use this column with suppressor type ion chromatography system.

Recently ozonation has been applied for disinfection of drinking water. Ozonation transforms a part of bromide (Br^-) to bromate (BrO₃^-), which is a potential carcinogen. Therefore, it is important to measure bromate in drinking water. IC SI-52 4E can analyze common inorganic anions and oxyhalides simultaneously with high resolution. Dichloroacetate (DCA^-) as a surrogate substance is also well separated. Water dip and carbonate system peak do not overlap with other peaks.


Sample : 50 μL
1. F^- (2 mg/L)
2. ClO₂^- (1 mg/L)
3. BrO₃^- (1 mg/L)
4. Cl^- (10 mg/L)
5. NO₂^- (5 mg/L)
6. Br^- (10 mg/L)
7. ClO₃^- (1 mg/L)
8. DCA^-, Dichloroacetate (1 mg/L)
9. NO₃^- (30 mg/L)
10. HPO₄^2- (15 mg/L)
11. SO₄^2- (40 mg/L)

Column       : Shodex IC SI-52 4E (4.0 mm I.D. x 250 mm)
Eluent       : 3.6 mM Na2CO3 aq.
Flow rate    : 0.8 mL/min
Detector     : Suppressed conductivity
Column temp. : 45 °C