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 (4.0mmI.D. x 250mm)
Eluent       : 6mM Na2CO3 aq. + 10% CH3CN
Flow rate    : 1.0mL/min  
Detector     : Suppressed conductivity
Column temp. : 25°C