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 : 100 μL
1. Cl- 3 mg/L
2. NO3- 10 mg/L
3. SO42- 15 mg/L
4. ClO4- 10 mg/L


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

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