Influence of Temperature on Retention Time (SI-35 4D)

Shodex IC SI-35 4D (a column for rapid oxyhalides analysis) was used to analyze several anions and oxyhalides. Similar to SI-52 4E,
SI-35 4D’ s elution time of some oxyhalides is dependent on column temperature. For a best separation of (Br^–) and chlorate (ClO₃^–), column temperature of 45 °C is recommended.

Sample : 20micro-L

1. F^– (4mg/L)

2. ClO₂^– (10mg/L)

3. BrO₃^– (20mg/L)

4. Cl^– (4mg/L)

5. NO₂^– (10mg/L)

6. Br^– (15mg/L)

7. ClO₃^– (20mg/L)

8. NO₃^– (13mg/L)

9. PO₄^3- (30mg/L)

10. SO₄^2- (10mg/L)

 Column : Shodex IC SI-35 4D (4.0mmID*150mm)
 Eluent : 3.6mM Na2CO3 aq.
 Flow rate : 0.5mL/min
 Detector : Suppressed conductivity