Abstract:A method of elemental determination is put forward in this paper. Namely, Pt, Pd, Au in 10-20 g samples were preconcentrated in milligram microgranular silver alloy by using fire assay. When compounded in solution,trace platinum, palladium, and gold in the solution were determined by ICP-AES. The detection limits of this method were 0.01, 0.005, and 0.01 μg·mL-1 for Pt, Pd and Au,respectively. Recoveries of standard were more than 97% with precision of 0.1%, 0.12%, and 0.09% of RSD(n=10),respectively. It has proven that this analysis method is quick, simple and accurate. The method has been applied to the determination of contents of Pt, Pd and Au in samples.
Key words:Fire assay;ICP-AES;Determination of platinum;Palladium;Gold
孙中华,诸 堃,毛 英,王卫国 . 小试金富集ICP-AES法同时测定试样中的铂、钯、金 [J]. 光谱学与光谱分析, 2004, 24(02): 233-235.
SUN Zhong-hua, ZHU Kun, MAO Ying, WANG Wei-guo . Determination of Trace Platinum, Palladium and Gold in Samples by ICP-AES and Fire Assay Preconcentration . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24(02): 233-235.
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