Anion Standards (7) (Anions and Organic Acids)

Seven anions were separated using anion chromatography column IC I-524A. This method uses low concentration of phthalic acid for the mobile phase compared to the method Anion Standards (6) (I-524A). This method is suitable for the separation of diprotic, triprotic organic acid, and inorganic acids simultaneously.

s0813b

Sample : 30µL

1. H₂PO₄^– 20mg/L

2. F^– 2.5mg/L

3. Cl^– 2.5mg/L

4. NO₂^– 5mg/L

5. Br^– 5mg/L

6. NO₃^– 5mg/L

7. SO₄^2- 5mg/L

8. Malic acid 20mg/L

9. Oxalic acid 20mg/L

10. Fumaric acid 20mg/L

11. Citric acid 20mg/L


 
 Column : Shodex IC I-524A (4.6mmID*100mm)
 Eluent : 1.5mM Phthalic acid + 1.38mM Tris(hydroxymethyl)aminomethane + 300mM Boric acid aq.
 Flow rate : 1.2mL/min
 Detector : Shodex CD
 Column temp. : 40°C