New Progress on Certified Reference Materials for Platinum-Group Elements: IGGE GPt-8, GPt-9 and GPt-10 |
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| Authors: | Tiexin Gu Changyi Shi Wei Pu Weidong Yan Mei Liu Mingcai Yan |
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| Institution: | Institute of Geophysical and Geochemical Exploration, Langfang, Hebei, China 065000 |
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| Abstract: | Three new certified reference materials (CRM), certified for the platinum-group elements (PGE), GPt-8, GPt-9 and GPt-10 were developed based on the previous CRMs IGGE GPt-1 to GPt-7. The PGE concentration of GPt-8 is about 1 ng g-1. GPt-9 and GPt-10 are ore samples with PGE concentrations of more than 1 μg g-1. A multi-laboratory collaborative analysis scheme was adopted in the certification procedure, in which nine highly-experienced institutes and laboratories participated. The samples were analysed for the six platinum-group elements by nickel sulfide mini fire assay, with Te coprecipitation, and were determined by ICP-MS. Osmium was determined by isotope dilution. |
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| Keywords: | platinum-group elements certified reference materials GPt-8 GPt-9 GPt-10 ICP-MS |
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