Analysis of organic acids and oxyhalides (SI-52 4E)

High resolution ion chromatography column, IC
SI-52 4E was used for the quantification of several oxyhalides and organic acids. Marlic acid and succinic acid will coelute with malonic acid under this condition.

Sample : 50 µL

1. F^– 1mg/L

2. Acetic acid 0.5mg/L

3. Propionic acid 0.8mg/L

4. Formic acid 0.1mg/L

5. ClO₂^– 1mg/L

6. BrO₃^– 1mg/L

7. Cl^– 1mg/L

8. NO₂^– 1mg/L

9. Br^– 1mg/L

10. ClO₃^– 1mg/L

11. NO₃^– 1mg/L

12. PO₄^3- 1mg/L

13. SO₄^2- 1mg/L

14. Malonic acid 0.5mg/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. : 45°C