Methods for analysis of noble metals in geochemical samples—Determination of ruthenium and osmium content-Separation by distillation—Catalytic spectrophotometric method
Methods for analysis of noble metals in geochemical samples—Determination of iridium content—Preconcentration by thiourea—Catalytic spectrophotometric method
Methods for analysis of noble metals in geochemical samples—Determination of palladium content-Preconcentration by thiourea-Graphite furnace atomic absorption spectrophotometric method
Methods for analysis of noble metals in geochemical samples—Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method
Methods for analysis of noble metals in geochemical samples—Determination of platinum palladium and gold content-Preconcentration by fire assay-Emission spectrographic method
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