house
house
Lithium Metaborate Fusion Lithium metaborate fusion is a high temperature procedure that dissolves rock forming minerals, trace minerals and refractory minerals. Lithium metaborate fusion solutions can be analyzed by ICP-OES, ICP-MS or a combination of both . This technique requires a minimum sample weight of 0.2 g.
GE_IMS95A50 LITHIUM METABORATE FUSION / ICP-MS PACKAGE ELEMENTS AND LIMIT(S) Ce 0.1 - 10,000 ppm
La 0.1 - 10,000 ppm Lu 0.05 - 1,000 ppm Mo 2 - 10,000 ppm Nb 1 - 10,000 ppm Nd 0.1 - 10,000 ppm Ni 5 - 10,000 ppm Pr 0.05 - 1,000 ppm Rb 0.2 - 10,000 ppm Sm 0.1 - 1,000 ppm Sn 1 - 10,000 ppm
Ta 0.5 - 10,000 ppm Tb 0.05 - 1,000 ppm Th 0.1 - 1,000 ppm Tm 0.05 - 1,000 ppm U 0.05 - 10,000 ppm V 5 - 10,000 ppm W 1 - 10,000 ppm Y 0.5 - 1,000 ppm Yb 0.1 - 1,000 ppm Zr 0.5 – 1,000 ppm
Co 0.5 - 10,000 ppm Cs 0.1 - 10,000 ppm Cu 5 - 10,000 ppm Dy 0.05 - 1,000 ppm Er 0.05 - 1,000 ppm Eu 0.05 - 1,000 ppm Ga 1 - 1,000 ppm Gd 0.05 - 1,000 ppm Hf 1 - 10,000 ppm
Mobile Metal ION – MMI™ Soil Geochemistry SGS is the owner and sole provider of MMI™ Technology. We have over 20 years of experience with this technology, and we are the market leaders in providing a weak extraction of the mobile form of the ions residing in near surface soils. MMI™ is a world-renowned exploration tool repeatedly proven to find buried mineral deposits. MMI™ Technology is an innovative analytical process that uses a unique analysis of metals in soils and weathered materials. Target elements are extracted using weak solutions of organic and inorganic compounds rather than conventional aggressive acid-based digests. MMI™ solutions contain strong ligands, which detach and hold the metal ions that were loosely bound to soil particles by weak atomic forces. The extraction does not dissolve the bound forms of metal ions. Thus, metal ions in MMI solutions are the chemically active or ‘mobile’ component of the sample. Because these mobile, loosely bound complexes are in very low concentrations, elemental determinations are made by conventional or cell-based ICP-MS. There are many benefits to using MMI™ Technology for soil geochemistry, including: • Few false anomalies • Focused anomalies • Minimal nugget effects MMI Sample Collection Sample collection is the critical part of a soil geochemistry program. The MMI™ Technology has specific sampling protocols based on years of experience and research. In the absence of an orientation survey, samples must be taken at a constant depth (10-25 cm) below the organic-inorganic soil interface. There is no sample preparation or drying. The analysis is performed on a 50g sample and the extracted solution is analyzed via ICP-MS, providing determinations in the part per billion range. For detailed instructions of the MMI™ sampling protocols and orientation surveys, please visit sgs.com/geochemistry or contact us at naturalresources@sgs.com. Additional MMI Analyses The application of ICP-MS cell technology to the analysis of MMI samples results in lower detection limits due to the removal of interferences. This means better definition of anomalous targets, for example, in the exploration of nickel deposits, kimberlites and layered intrusions. Here, chromium, an important geological trace element, can be measured down to 1ppb. Similarly, for uranium exploration, low level vanadium (1ppb) is also important. These can be measured using an enhanced package, scheme code GE_MMIME. Additional elements such as S, B, Br, I, and Pb isotopes can also be measured as required.
Ho 0.05 - 1,000 ppm Note: Lithium metaborate fusion whole rock ICP-OES package GO_ICP95A50 can be found on page 34.
Individual Methods for Exploration Grade Analysis
SULPHUR AND CARBON CODE(S)
MIN. SAMPLE WT.(g)
ELEMENT
LIMIT(S)
DESCRIPTION IR combustion
GE_CSA06V
S C
0.005 - 30% 0.005 - 30% 0.01 - 30%
0.1 - 0.3 0.1 - 0.3
2 -
Leach/ICP-OES
1.0 0.2
GE_CSA07D GE_CSA08Q GE_CSB02V GE_CSA03B
SO 4
≥ 0.01% ≥ 0.05%
Leach/ IR combustion
S 2-
CO 2 (Carbonate)
Coulometry
0.02 - 0.1
C (organic) C (inorganic) C (organic) C (inorganic) C (graphitic) C (graphitic)
0.01 - 40% 0.01 - 30%
Leach/IR combustion
0.25
GE_CSB03V
≥ 0.05% ≥ 0.01%
Coulometry
0.02 - 0.1
GE_CSA05V GE_CSB05V
0.05 - 50%
Leach/IR combustion
0.05
≥ 0.05%
Coulometry
0.1
ADDITIONAL SINGLE ELEMENTS CODE(S)
MIN. SAMPLE WT.(g)
ELEMENT
LIMIT(S)
DESCRIPTION
GE_CVA37A25
Hg
0.005 - 100 ppm 25 - 100,000 ppm
Cold vapour AAS
0.15
GE_ISE20V
F
Ion selective
0.1
electrode
GE_ISE30V
Cl
50 - 5,000 ppm
Ion selective
0.2
electrode Titration
GO_CLA30V
Cl
25 - 20,000 ppm
10
SGS offers a wide variety of specific element analyzes. Please contact your local customer service agent.
30
31
Made with FlippingBook Annual report maker