Geochemistry Guide 2024

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Multi-Acid (Four Acid) Digestion Packages

GC_ICP42C100 MULTI-ACID DIGESTION PACKAGE / ICP-OES ELEMENTS AND REPORTING LIMIT(S) Ag ≥ 2 ppm Co ≥ 4 ppm

Mo ≥ 5 ppm Na ≥ 100 ppm Ni ≥ 20 ppm P ≥ 30 ppm Pb ≥ 20 ppm Sb* ≥ 10 ppm Se ≥ 30 ppm

Sr ≥ 1 ppm Ti* ≥ 5 ppm Tl ≥ 30 ppm V ≥ 2 ppm Y ≥ 0.5 ppm Zn ≥ 10 ppm

Al* ≥ 100 ppm As* ≥ 30 ppm Ba* ≥ 2 ppm Be ≥ 0.05 ppm

Cr* ≥ 10 ppm Cu ≥ 5 ppm Fe ≥ 100 ppm K* ≥ 20 ppm Li ≥ 10 ppm Mg* ≥ 40 ppm

Bi ≥ 20 ppm

Ca* ≥ 100 ppm

Cd ≥ 2 ppm Sn* ≥ 20 ppm Additional elements can be added. An ICP-MS option may be available locally. Please enquire. Requires a minimum sample weight of 1.0 g. *Recovery can be incomplete so analysis can be biased low. Mn ≥ 5 ppm

GC_ICP46C100 MULTI-ACID DIGESTION PACKAGE / FUSION / ICP-OES ELEMENTS AND REPORTING LIMIT(S) Ag ≥ 2 ppm Co ≥ 4 ppm

Mo ≥ 5 ppm Na ≥ 100 ppm Ni ≥ 20 ppm P ≥ 30 ppm Pb ≥ 20 ppm Sb* ≥ 10 ppm Se ≥ 30 ppm

Sr ≥ 1 ppm Ti ≥ 5 ppm Tl ≥ 30 ppm V ≥ 2 ppm Y ≥ 0.5 ppm Zn ≥ 10 ppm

Al ≥ 100 ppm As* ≥ 30 ppm

Cr ≥ 10 ppm Cu ≥ 5 ppm Fe ≥ 100 ppm K ≥ 20 ppm Li ≥ 10 ppm Mg ≥ 40 ppm Mn ≥ 5 ppm

Ba ≥ 2 ppm

Be ≥ 0.05 ppm Bi ≥ 20 ppm Ca ≥ 100 ppm

Process Control Grade Analysis

Cd ≥ 2 ppm Sn* ≥ 20 ppm Additional elements can be added. An ICP-MS option may be available locally. Please enquire. Requires a minimum sample weight of 1.0 g. *Recovery can be incomplete so analysis can be biased low.

The analytical approach for process control analysis differs from the standard geochemistry “package” methodology. Instead, we provide both multi-element packages and customized spectroscopic determinations that can include multiple dilutions on an element-by-element basis to ensure that highest quality results are obtained.

These process control assay methods are only a small selection of the methods and capabilities available at SGS. A wide variety of other methods are available including fire assay, manual and automated titrations, CVAA mercury analysis, AAS, IR combustion, coloumetry and chromatography. Fire assay methods often require customized fluxes and finishes. Please contact your local customer service agent if you have any needs in this area – we have lots of expertise to share.

Two Acid/Aqua Regia Digestion Packages

GC_ICP21C50 AQUA REGIA DIGESTION PACKAGE / ICP-OES ELEMENTS AND REPORTING LIMIT(S) Ag ≥ 0.8 - 1000 ppm Co ≥ 3 ppm

Mo ≥ 6 ppm Na ≥ 20 ppm Ni ≥ 6 ppm P ≥ 50 ppm Pb ≥ 20 ppm Sb ≥ 10 ppm Se ≥ 30 ppm

Sr ≥ 0.02 ppm Ti ≥ 0.2 ppm Tl ≥ 30 ppm V ≥ 2 ppm Y ≥ 0.5 ppm Zn ≥ 7 ppm

Al ≥ 2 ppm As ≥ 30 ppm Ba ≥ 0.07 ppm Be ≥ 0.02 ppm Bi ≥ 10 ppm Ca ≥ 20 ppm

Cr ≥ 1 ppm Cu ≥ 1 ppm Fe ≥ 2 ppm K ≥ 10 ppm

Li ≥ 20 ppm Mg ≥ 0.7 ppm Mn ≥ 0.4 ppm

Cd ≥ 0.9 ppm Sn ≥ 20 ppm Additional elements can be added. An ICP-MS option may be available locally. Please enquire. Requires a minimum sample weight of 1.0 g.

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