Please use this column with suppressor type ion chromatography system.
Low concentration anion standards were analyzed using IC SI-90 4E (a column for anions analysis). k’ is the capacity factor of F– and water dip.
Sample : 100micro-L
1. F– 2micro-g/L
2. Cl– 3micro-g/L
3. NO2– 5micro-g/L
4. Br– 10micro-g/L
5. NO3– 10micro-g/L
6. PO43- 15micro-g/L
7. SO42- 15micro-g/L
Column : Shodex IC SI-90 4E (4.0mmID*250mm) Eluent : Na2CO3 + NaHCO3 aq. Flow rate : 1.0mL/min Detector : Shodex CD-5 and Suppressor module Column temp. : 25°C