Please use this column with suppressor type ion chromatography system.
Chloric acid should be analyzed by ion chromatography for water quality standards in accordance with 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 Ethylenediamine (EDA) solution (50mg/mL) is to be added into the 1L sample, to prevent the generation of chloric acid through the reaction between chlorous acid and residual chlorine.
Std. (1mg/L each) containing
Sample: 50μL River water containing EDA 50mg/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