Analysis of Oxyhalides (SI-52 4E)

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 : 50micro-L
1. F^- (2mg/L)
2. ClO₂^- (1mg/L)
3. BrO₃^- (1mg/L)
4. Cl^- (10mg/L)
5. NO₂^- (5mg/L)
6. Br^- (10mg/L)
7. ClO₃^- (1mg/L)
8. DCA-, Dichloroacetate (1mg/L)
9. NO₃^- (30mg/L)
10. PO₄^3- (15mg/L)
11. SO₄^2- (40mg/L)

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