DETERMINATION OF PALLADIUM AND PLATINUM BY ATOMIC ABSORPTION

被引:56
作者
SCHNEPFE, MM
GRIMALDI, FS
机构
[1] U.S. Geological Survey, Washington, D.C
关键词
D O I
10.1016/0039-9140(69)80080-9
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Palladium and platinum are determined by atomic absorption after fire-assay concentration into a gold bead. The limit of determination is ~0·06 ppm in a 20-g sample. Serious depressive interelement interferences are removed by buffering the solutions with a mixture of cadmium and copper sulphates with cadmium and copper concentrations each at 0·5%. Substantial amounts of Ag, Al, Au, Bi, Ca, Co, Cr, Fe, Hg, K, La, Mg, Mn, Mo, Na, Ni, Pb, Te, Ti, V, Y, Zn, and the platinum metals do not interfere in the atomic-absorption determination. © 1969.
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页码:591 / &
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