Rapid separation and determination of chromium.
Chromium(III) is oxidized to chromium(VI) at room temperature or by conventional persulphate oxidation. The chromium(VI) is separated from other metal ions by retention on a small anion-exchange column, and then eluted with a perchlorate solution and measured spectrophotometrically with a flow-through cell. The method is rapid, selective and amenable to automation.
Fritz
J S
JS
Ames Laboratory USAEC and Department of Chemistry, Iowa State University, Ames, Iowa 50010 U.S.A.
Sickafoose
J P
JP