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enrichment analysis

enrichment analysis, Total:10 items.

In the international standard classification, enrichment analysis involves: Non-ferrous metals, Metalliferous minerals.

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, enrichment analysis

• GB/T 23594.1-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates.Part 1:Determination of total rare earth oxide content.Gravimetry
• GB/T 17415.2-1998 Methods for chemical analysis of Tantalum and Niobium ores--Determination of Niobium content--Preconcentration and separation with silica gel--Thiocyanate extraction photometric method
• GB/T 17418.4-1998 Methods for analysis of noble metals in geochemical samples--Determination of iridium content-Preconcentration by thiourea-Catalytic spectrophotometric method
• GB/T 17415.1-1998 Methods for chemical analysis of Tantalum and Niobium ores--Determination of Tantalum content--Preconcentration and separation with silica gel--Butyl rhodamine B extraction photometric method
• GB/T 23594.2-2009 Chemical analysis methods of rare earth contents in samarium-europium-gadolinium concentrates.Part 2:Determination of fifteen rare earth oxide relative contents.Inductively coupled plasma emission spectrometry
• GB/T 17418.2-1998 Methods for analysis of noble metals in geochemical samples--Determination of platinum and rhodium content-Preconcentration by thiourea-Catalytic polarographic method
• GB/T 17418.3-1998 Methods for analysis of noble metals in geochemical samples--Determination of palladium content-Preconcentration by thiourea-Graphite furnace atomic absorption spectrophotometric method
• GB/T 17418.6-1998 Methods for analysis of noble metals in geochemical samples--Determination of platinum, palladium and gold content-Preconcentration by fire assay-Emission spectrographic method

工业和信息化部, enrichment analysis

• XB/T 626-2019 Methods for chemical analysis of thulium, ytterbium, and lutetium concentrates. Determination of the proportions of fifteen rare earth element oxides. Inductively coupled plasma atomic emission spectrometry.

Professional Standard - Non-ferrous Metal, enrichment analysis

• YS/T 53.1-1992 Copper, lead, zinc ore and tailings chemical analysis method fire test gold enrichment - flame atomic absorption spectrometry and thio Michler ketone spectrophotometry determination of gold content

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