Determination of 22 trace elements in high-purity copper including Se and Te by ETV-ICP OES using SF₆, NF₃, CF₄and H₂as chemical modifiers

Abstract

Experiments with SF₆, NF₃, CF₄and H₂as new modifier gases for the matrix studied were performed. Pre-treatment steps of sub-samples (<italic>e.g.</italic>, roasting) can now be omitted; the scope of application was enlarged to Au and hydride forming elements (such as Se, Te).