Spectrometric determination of arsenic in zinc concentrates and other lead-zinc smelter roasted products.

ABSTRACT

In the zinc electro-winning process arsenic is considered a "problem impurity". Its determination should be fast, accurate and simple to help in-plant control for its effective removal during the iron purification stage. Such a method is presented which is applicable to all zinc concentrates, lead concentrates and smelter residues, with various compositions and matrix components. Results for certified reference samples and for recovery of standard additions are very good.