Copper Mineral Selective Leaches
Iron Ore Analysis
Davis Tube Recovery
Ore Grade Rare Earth Elements
Many REEs occur in minerals resistant to acid digestion, so fusion is the preferred method of decomposition. ALS offers ICP-MS/ICP-AES and XRF determinations. These methods are most appropriate for known ores; see the Whole Rock Analysis & Lithogeochemistry section for trace level methods.
This package is designed for potash exploration to report total chemical composition of samples as well as the proportion of analytes that can be leached with water. ME-XRF26k is a fusion-XRF method that reports total content where ME-ICP03k is a water-leach method that reports soluble elements. OA-GRA04k provides the percentage of residue insoluble in water using a gravimetric method.
Aqua Regia Overlimit Methods
Four Acid Overlimit Methods
XRF For Resistive Minerals
Trace Level Lithium Exploration
Intermediate and Ore Grade Lithium
Lithium In Sedimentary Deposits
XRF is the industry-standard analytical method for bauxite analysis. Results are reported on a dry weight (110°C) basis by default. Additional characterization methods such as organic carbon, reactive silica and available alumina comply fully with CETEM performance criteria. Multi-screen sizing to determine the optimum screen size for recovery and subsequent wet beneficiation are also available.
Chromite and Manganese Ores
Sodium Peroxide Fusion ICPAES
Oxidising Fusion XRF Finish
Samples are analysed by XRF following a lithium borate fusion with the addition of strong oxidising agents to decompose sulfide-rich ores. Other elements are available to report on request. LOI may be optionally added to this method, but it is not used to normalise results.
Base Metal Concentrates By XRF
Samples are analyzed by XRF following a lithium borate fusion with the addition of strong oxidizing agents to decompose sulfide concentrates. Other elements are available to report on request. LOI may be optionally added to this method, but it is not used to normalize results.