Trace level determination of Cr(III)/Cr(VI) in water samples using ion chromatography with UV detection

摘要

In the present research, a method of simultaneous determination of Cr(III) and Cr(IV) with mixed bed ion-exchange column was carried out. Cr(III) is oxidized to Cr(VI) in post-column derivatization reaction, then both ions are detected by a UV detector, at wavelength lambda=365 nm.