Commodities
GO_XRF72 Borate fusion / WD XRF Whole rock package ANALYTE
REPORTED AS PACKAGE MAJORS PACKAGE-P PACKAGE MAJ/MIN
RANGE
Precious metals analysis Precious metals (gold, silver and the platinum group elements) can be analyzed and assayed by many techniques. Coupled with the many sample preparation options to ensure representative samples SGS sets the benchmark for reliable precious metal assays. Lower and upper reporting limits of a given method can vary slightly among SGS laboratories due to reagent quality, access to consumables and instrument availability. SGS offers a wide variety of select methods to analyze specific elements, species and/or groups of elements. These methods address specific circumstances that arise due to mineralogy, chemistry or commercial requirements. A selection of commonly requested methods are listed below by commodity type, but others are available. PhotonAssay Photon Assay is a non-destructive technology uses high-energy x-rays to hit samples of up to 500g, enabling rapid and enhanced analysis of gold, silver, copper and other elements. The technology is measurably safer, faster and more environmentally friendly than previous assay processes.
Al 2 O 3 As 2 O 3
X
X X X X X X X X
X
0.01 - 100% 0.01 - 5% 0.01 - 70% 0.01 - 5% 0.01 - 60% 0.01 - 30% 0.01 - 5%
Al
As Ba
Extension/Optional Oxide
BaO
X
X
Bi
Bi 2 O 3 CaO
Extension/Optional Oxide
Ca
X
X X X X X
Cl
Cl
Co
Co 3 O 4 Cr 2 O 3
Cr
0.01 - 5% 0.01 - 5% 0.5 - 50%
Cu
CuO
F
F
Extension/Optional Oxide
Fe Hf
Fe 2 O 3 HfO 2
X
X
X
0.01 - 100% 0.01 - 5% 0.01 - 70% 0.01 - 100% 0.01 - 100% 0.01 - 5% 0.01 - 60% 0.01 - 5% 0.01 - 55% 0.01 - 5% 0.01 - 5% 0.01 - 5% 0.01 - 100% 0.01 - 5% 0.01 - 10%
Extension/Optional Oxide
K
K 2 O
X X X
X X X X X X
X X X
Mg Mn Mo
MgO
Mn 3 O 4 MoO 3 Na 2 O NiO P 2 O 5 PbO Rb 2 O Sb 2 O 3
Extension/Optional Oxide
Na
X
X X X
Ni
P
X
Pb Rb Sb
Extension/Optional Oxide Extension/Optional Oxide Extension/Optional Oxide
CODE
ELEMENT
DESCRIPTION
DETECTION LIMITS
0.03 - 350 ppm 0.01 - 350 ppm
PAAU02 PAAU04* PAAU02H
Au Au Au Au Au Ag Cu Cu Cu
Standard Gold Analysis
Standard Gold Analysis, 4 cycle
Si
SiO 2 SnO 2
X
X X X X
X
High Gold Analysis
100 - 3,500 ppm (only used if over 350 ppm on PAAU02)
Sn
Extension/Optional Oxide
S
SO 3 SrO
X
X X
Extra High Gold Analysis
1,000 - 10,000 ppm
PAAU02HH PAAUAG02
Sr Ta Th
0.01 - 5% 0.01 - 5% 0.01 - 1%
Gold and Silver Analysis, Gold-Optimised
0.03 - 350 ppm 6 - 5,000 ppm
Ta 2 O 5 ThO 2 TiO 2 U 3 O 8 V 2 O 5 WO 3 ZnO ZrO 2
Extension/Optional Oxide Extension/Optional Oxide
Copper Analysis, Material-Agnostic** Copper Analysis, Material-Tailored***
0.1 - 4% X - 4% 2 - 30%
PACU01A PACU01 PACU01H
Ti U
X
X
X
0.01 - 100% 0.01 - 5% 0.01 - 10% 0.01 - 5% 0.01 - 5% 0.01 - 5% -10 -100%
Extension/Optional Oxide
High Copper Analysis
V
X
X
X
W Zn
Extension/Optional Oxide
*PAAU04 available if required for lower DL / increased precision. Scheme is setup with a floating detection limit. **Copper agnostic service can be offered to new clients for ad hoc work, noting the lower detection limit of 1,000ppm. If doing ongoing work, it is suggested they do the test work required to develop a material-tailored calibration. ***Copper material-tailored service is only available after test work is performed. Gold
X X X
X X X
Zr
LOI (10000C)*
X
Moisture (as received)
Optional
Optional
Optional
≥ 0.01%
*G_PHY01V or G_PHY02V Unmineralized whole rock analysis; for commodities and specific matrices refer to commodity section. Specialized whole rock XRF packages are available for mineral sands exploration programs. For Ferrous iron (FeO) see page 52.
EXPLORATION GRADE ANALYSIS
Fire assay gold CODE
ELEMENT
LIMIT(S)
DESCRIPTION
GE_FAA30V5/FAA50V5 GE_FAI30V5/FAI50V5 GE_FAI31V5/FAI51V5 GE_FAM30V5/FAM30V10 GE_FAM50V5/FAM50V10
Au
5 - 10,000 ppb 1- 10,000 ppb 5 - 10,000 ppb 1- 2,000 ppb 1- 2,000 ppb
30/50 g, Fire assay, AAS finish 30/50 g, Fire assay, ICP-OES finish 30/50 g, Fire assay, ICP-OES finish 30 g, Fire assay, ICP-MS finish 50 g, Fire assay, ICP-MS finish
Au** Au** Au** Au**
**Pt and Pd can be included. Gold in soils and/or sediments can be determined by aqua regia digest and DIBK extraction. This is a partial leach and can require a pre-treatment such as roasting if samples contain significant sulphur bearing phases.
30
31
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