大洋多金属结核和深海沉积物标准物质中铂族元素的中子活化分析
Determination of Platinum Group Elements in Polymetallic Nodules and Deep Marine Sediments Reference Materials by Neutron Activation Analysis
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摘要: 采用镍锍试金预富集中子活化分析方法,测定了大洋多金属结核标准物质GSPN2、GSPN3和深海沉积物标准物质GSMS2、GSMS3中的铂族元素;根据大洋样品成分特征,对常规的镍锍试金配方和熔炼条件作了改善;计算了活化分析中的铂族元素干扰核反应,校正了Au对Pt的二级干扰;选用羰基化镍粉配料,降低了铂族元素空白值。用国家一级标准物质GBW07102作了对照分析,结果与标准值相符。Abstract: A method for determination of platium group elements (PGE) in geostandard reference materials of polymetallic nodules (GSPN 2 and GSPN 3) and deep marine sedments (GSMS 2 and GSMS 3) by neutron activation analysis after nickel sulfide fire assay preco