Perchloric Acid (SI-90 4E)

Please use this column with suppressor type
ion chromatography system.

Perchloric acid was analyzed by an ion chromatography column (anion), SI-90 4E.
Since perchloric acid is a highly hydrophobic ion, addition of acetonitrile in the eluent shortens the retention time.

Sample : 100µL

1. Cl^– 3mg/L

2. NO₃^– 10mg/L

3. SO₄^2- 15mg/L

4. ClO₄^– 10mg/L

Column : Shodex IC SI-90 4E (4.0mmID*250mm)
 Eluent : 6mM Na₂CO₃ aq. + 10% CH₃CN
 Flow rate : 1.0mL/min 
 Detector : Suppressed conductivity
 Column temp. : 25°C