Analysis of Oxyhalides and Anions in River 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 standard in accordance to the Ministry of Health, Labor and Welfare in Japan. Oxyhalides and anion standards in river water were analyzed using IC SI-52 4E. 1mL of Ethylendiamine (EDA) solution (50mg/mL) is to be added into 1L sample, to prevent generation of chloric acid through the reaction between chlorous acid and residual chlorine.



Sample : 50micro-L
Std. (1mg/L each) containing
EDA 50mg/L

Sample : 50micro-L River water (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