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Arsenic Acid and Arsenious Acid

Arsenic acid and arsenious acid also can be separated by ion exclusion chromatography using RSpak KC-811.

Sample : 100µL
1. Arsenate, AsO43- (20ppm)
2. Arsenite, AsO2- (5ppm)

Column : Shodex RSpak KC-811 (8.0mmID*300mm)
Eluent : 12mM H3PO4 aq.
Flow rate : 1.0mL/min
Detector : UV(195nm)
Column temp. : 40°C