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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 : 50μL
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. HPO42- (15mg/L)
11. SO42- (40mg/L)

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

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