Fusion techniques are required for precious metal analysis and complete characterization of geological material. A flux material is added to the sample to either liberate or bind certain components before analysis.
In the case of whole rock characterization, an added flux reacts with the rock forming minerals enabling quantitative analysis by either XRF, laser ablation or ICP (following an acid dissolution). Meanwhile maintaining detection limits comparable to traditional multi-acid digestion methods. Fusion followed by XRF or laser ablation finishes also offers safety and environmental advantages as no acids are used in digestion, and it is fast and repeatable.
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