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, AsO₄^3- (20ppm)
2. Arsenite, AsO_2- (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