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The potential of fire assay and inductively coupled plasma source mass spectrometry for the determination of platinum group elements in geological materials
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1987
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Preliminary work on the application of fire assay and inductively coupled plasma source mass spectrometry (ICP-MS) to the determination of platinum-group elements (PGEs) in geological materials is described. A combination of the neo-classical nickel sulphide fire assay collection procedure with final determination by ICP-MS is considered in relation to the simplified procedure required for dissolution of the nickel sulphide “button” and the wealth of information inherent in ICP-MS spectra. The method was applied to the determination of five PGEs and gold in the South African standard reference material PTO-1 (now known as SARM-7) and the Canadian standard reference material PTC-1. Isotope dilution analysis was applied to the determination of platinum.