Home > Supplier Companies > AGAT Laboratories > Articles > Geochemical Analysis
AGAT Laboratories

Geochemical Analysis

Oct 27, 2014



AGAT Laboratories offers a variety of geochemical approaches and packages that can be customized based on your project requirements. These analyses are initiated with a digestion or decomposition technique and then conducted and completed using state-of-the-art instrumentation for the most accurate results possible. 
 
Our multi-elemental geochemical packages and specialty analysis include:
• Sample decomposition by single and multi acid digests
• Geochemical Analysis packages by AAS, ICP-OES and ICP-MS for trace, ore grade and concentrate levels
• Rare Earth Elements and Lanthanide Analysis
• Leach Technology
• Hydrogeochemistry
• Leco Analysis for Sulphur and Carbon
• Acid-Base Accounting


Sample Decomposition
 
In order to prepare solid samples for instrumental analysis, AGAT Laboratories offers a number of techniques including:
• Acid Digestion to solubilise target elements.
• Fusions for more vigorous means of decomposition to completely break-down samples and difficult-to-dissolve minerals into a molten flux.
• Selective Leaches for dissolving specific trace elements.


Advanced Technology
 
AGAT Laboratories uses leading-edge instrumentation to report the highest number of elements at the lowest detection limits in the industry. Once these elements of interest have been solubilised, they may be analyzed using Mass Spectroscopy, Emission Spectroscopy or Atomic Absorption.
 
Inductively Coupled Plasma and Flame Atomic Absorption instrumentation are fully automated to provide timely and cost-effective choices in multi-elemental trace analysis. We also offer cold vapour atomic absorption for mercury (Hg) analysis, and classical wet techniques for high precision mineralization assays.
 
AGAT Laboratories also offers Acid-Base Accounting (ABA) and kinetic cell testing on all sample types, including rock overburden. These tests provide important information on the potential of sites to produce or consume acid. As a result, these tests are extremely important when making decisions for mine sites and their design.

 
Specialty Geochemistry
 
Rare Earth Elements and Lanthanide Analysis
This package is ideal for the increasing interest in lanthanide analysis. Rare earth elements are determined using ICP mass spectrometry with the choice of three dissolution techniques based on your requirements. We can use either a four-acid “near-total” digestion, aqua regia or a lithium borate fusion for a more aggressive approach. The same lithium borate fusion can also be used for the whole rock analysis using ICP finish. Along with these packages, we also offer a Chondrite Plot that is provided with lithium borate packages.
 
Leach Technology
AGAT Laboratories offers a wide range of selective and sequential leaches so that you can select the analysis that is most applicable to your geological field sampling environment. We offer non-proprietary methods that include, but are not limited to, cold and hot hydroxylamine hydrochloride, sodium pyrophosphate, sodium acetate and EDTA leaches. By focusing on powerful technology, AGAT Laboratories offers unparalled detection limits and results free of common interferences. This can be crucial when requiring Cu and Cr in sodium pyrophosphate leaches or As and Se in hydroxylamine hydrochloride digestions. Additionally, AGAT Laboratories is proud to offer access to the powerful XANES technology to fully explore and identify speciation in specific samples.
 
Hydrogeochemistry
Water geochemistry can be a significant tool in mineral exploration. When water interacts with rocks containing valuable ore deposits, minerals dissolve in the water, reflecting the chemical composition of the rock. Groundwater that comes into contact with mineral deposits will reveal chemically distinct water zones around ore deposits. The following groundwater analysis are conducted using ICP-MS and detection limits are based on “clean” samples. Samples submitted for hydrogeochemistry that are high in total dissolved solids will be diluted prior to analysis and results reported will reflect this dilution.
 
LECO Analysis
Carbon and sulfur analysis can easily be added to the lithogeochemical analysis. We operate leading-edge LECO instrumentation which combines combustion and infrared technology to deliver high precision results.
 
Acid-Base Accounting
AGAT Laboratories also offers Acid-Base Accounting (ABA) and kinetic cell testing on all sample types, including rock overburden. These tests provide important information on the potential of sites to produce or consume acid and provide important information when making decisions for mine sites and their design.

Source: http://www.agatlabs.com/minerals-and-metals/mining-geochemistry/geochemical-assay.cfm