Please use this column with suppressor type ion chromatography system.

Phosphate (HPO₄^2-), Phosphite (HPO₃^2-) and Hypophosphite (HPO₂^2-) together with the seven common anions were analyzed using a column for anion analysis, IC SI-52 4E. Separation of phosphate and fluorine has been improved by using SI-52 4E compared with SI-90 4E.
Please refer to 'Separation of Phosphate, Phosphtite and Hypophosphite (SI-90 4E)'.


Sample : 20 μL
1. F^- 2 mg/L
2. HPO₂^2- 10 mg/L
3. Cl^- 3 mg/L
4. NO₂^- 5 mg/L
5. Br^- 10 mg/L
6. NO₃^- 10 mg/L
7. HPO₃^2- 10 mg/L
8. HPO₄^2- 10 mg/L
9. SO₄^2- 10 mg/L

Column       : Shodex IC SI-52 4E (4.0 mm I.D. x 250 mm)
Eluent       : 3.6 mM Na2CO3 aq.
Flow rate    : 0.8 mL/min
Detector     : Suppressed conductivity
Column temp. : 40 °C