The determination of selenium and other impurities in high-purity copper by flameless atomic-absorption spectrophotometry.
Se, Te, Bi and Sb are co-precipitated with ferric hydroxide from a solution of 1 g of the copper. The precipitate is collected on a filter disc and punched samples are taken for flameless atomicabsorption analysis. Less than 0.5 ppm of the four elements can be rapidly determined.
Mullen
J D
JD
British Copper Refiners Limited. Prescot, Merseyside, U.K.