A new indicator reaction for kinetic determination of traces of cobalt

The reduction of dissolved oxygen by SO^2^-"3 in feebly alkaline media is catalysed by Co^2^+ ions. By use of an electrochemical sensor for oxygen, the optimum analytical conditions for determining traces of the catalyst have been established. At 25^o the optimum conditions are pH = 8.25 and [S...
Ausführliche Beschreibung

The reduction of dissolved oxygen by SO^2^-"3 in feebly alkaline media is catalysed by Co^2^+ ions. By use of an electrochemical sensor for oxygen, the optimum analytical conditions for determining traces of the catalyst have been established. At 25^o the optimum conditions are pH = 8.25 and [SO^2^-"3] =< 1.25 x 10^-^3M. Under these conditions cobalt may be determined in the range 1-7 x 10^-^7M. Ausführliche Beschreibung