Effect of Na2CO3 concentartion on elution time when IC SI-90 4E (a column for anions analysis) is used for the analysis of anions is shown here.
Sample :
1. Water Dip
2. F–
3. Cl–
4. NO2–
5. Br–
6. NO3–
7. PO43-
8. SO42-
Column : Shodex IC SI-90 4E (4.0mmID*250mm)
Eluent : Na2CO3 + 10.0mM NaHCO3 aq.
Flow rate : 2.0mL/min
Detector : Shodex CD-5 and Suppressor module
Column temp. : 25°C