New progress on certified reference materials for platinum-group elements: IGGE GPt-8, GPt-9 and GPt-10

作者：Gu Tiexin^*; Shi Changyi; Pu Wei; Yan Weidong; Liu Mei; Yan Mingcai

来源：Geostandards and Geoanalytical Research, 2007, 31(2): 125-132.

DOI：10.1111/j.1751-908X.2007.00837.x

• platinum-group elements
• certified reference materials
• GPt-8
• GPt-9
• GPt-10
• ICP-MS

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 mu g 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.

• 出版日期2007-6
• 单位中国地质科学院地球物理地球化学勘查研究所