NAA and UV laser ablation ICP-MS for platinum group elements and gold determination in NiS fire assay buttons: A comparison between two methods

被引：18

作者：

Figueiredo, AMG

Enzweiler, J

Sarkis, JES

Jorge, APS

Shibuya, EK

机构：

[1] CNEN, IPEN, BR-05422970 Sao Paulo, Brazil

[2] UNICAMP, Inst Geociencias, BR-13083970 Campinas, SP, Brazil

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2000年 / 244卷 / 03期

关键词：

D O I：

10.1023/A:1006725618998

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

NAA and UV laser ablation ICP-MS were used to determine platinum group elements (PGEs) and gold in the geological reference materials UMT-1, 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.

引用

页码：623 / 625

页数：3

共 10 条

[1] INSTRUMENTAL NEUTRON-ACTIVATION ANALYSIS OF A NICKEL SULFIDE FIRE ASSAY BUTTON TO DETERMINE THE PLATINUM GROUP ELEMENTS AND GOLD [J].