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.
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