Catalysis of the arsenic(III)-potassium bromate reaction--II: catalytic determination of osmium.
A simple visual titrimetric procedure is proposed for the catalytic determination of osmium, based on the arsenic(III)-bromate reaction. A detailed kinetic study of the catalytic reaction allows a mechanism to be proposed and optimum conditions for analysis to be selected. The analytical method has a detection limit of 10(-4) ppm osmium and possesses a higher degree of freedom from interference by ruthenium than other similar systems.
Burgess
A E
AE
Department of Pure and Applied Chemistry, University of Strathclyde, Cathedral Street, Glasgow Gl 1XL, Scotland.
Ottaway
J M
JM