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|Type:||Artigo de evento|
|Title:||Naa And Uv Laser Ablation Icp-ms For Platinum Group Elements And Gold Determination In Nis Fire Assay Buttons: A Comparison Between Two Methods|
|Abstract:||NAA and UV laser ablation ICP-MS were used to determine platinum group elements (PGEs) and gold in the geological reference materials UMT1, WPR-1, WMG-1, GPT-4 and GPt-6, after NiS fire assay. Both methods presented results were good agreement with the recommended values. NAA gave more accurate values for Ir (relative errors between 0 to 9%) and UV-LA-ICP-MS presented better results for Pt (relative errors less than 12%, except for WPR-1). UV- LA-ICP-MS showed better sensitivity than NAA for Pd and Os. On the other hand, NAA showed lower detection limits for Ir and Au. Advantages and disadvantages of each method are discussed.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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