Analysis of Oxyhalides and Anions in Tap Water (SI-52 4E)

Please use this column with suppressor type ion chromatography system.

Chloric acid should be analyzed by ion chromatography for water quality control in accordance to the Ministry of Health, Labor and Welfare in Japan. The method states an addition of 1 mL ethylenediamine solution (50 mg/mL) to 1L of sample collected. This prevents chlorous acid from reacting with residual chlorine to form chloric acid. Oxyhalides and anion standards in river water were analyzed using IC SI-52 4E.

s1390

Sample : 50µL

Std. (1mg/L each) containing
EDA 50mg/L

Sample : 50µL
River Water containing EDA 50mg/L

1. F^–

2. ClO₂^–

3. BrO₃^–

4. Cl^–

5. HCO₃^–

6. NO₂^–

7. Br^–

8. ClO₃^–

9. NO₃^–

10. PO₄^3-

11. SO₄^2-


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