Decomposition of samples in the determination of platinum-group metals in carbonaceous rocksстатья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Sources of platinum-group metal losses in conventional decomposition procedures for carbonaceous rocks are considered. A decomposition procedure with a mixture of H2SO4 and CrO3 is proposed taking into account some peculiarities of the speciation of platinum-group metals in these rocks. The results of the determination of these metals in auriferous black shale by the procedure proposed are compared with the results of their direct determination by mass spectrometry and neutron activation microassay.