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Perchloric Acid (SI-90 4E)

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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. SO42- 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