Determination of 22 Elements in Iron, Copper, Zinc, and Lead Sulphide----Institute of Geochemistry Chinese Academy of Sciences

Abstract: T his paper presents a method to determine 22 elements of Al、Fe、Cu、Pb、Zn、Ca、Mg、K、Na、Sb、Mn、Ti、Li、Be、Cd、Ag、Co、Ni、Sr、V、Mo and S in sulphide ores, including irons tone, copper ore, lead and zinc ore and mult i-metal ore by Inductively Coupled Plasma Atomic Emission Spectromet ry ( ICP-AES) using nitric acid, hydrochloric acid, hydrofluoric acid and perchloride acid for sample digestion. The techniques for sample dissolution, detection limits and spectrum interference of coexisting elements were studied, and the optimal analytical wavelengths were selected. The accuracy and precision of this method were examined by analyzing different reference materials. The results were in a good agreement with the certified values. The proposed method has been success fully applied for routine lab analysis.

Key words: sulphide ores with iron, copper, zinc, lead, inductively coupled Plasma At omic Emission Spectrometry ( ICP-AES) , four acids digestion

*Corresponding Author, E-Mail: mashengfeng@gmail.com

Bulletin of Mineralogy, Petrology and Geochemistry Vol. 30, No.1 2011, page65-72

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