What Determines XRF Accuracy in Ore Testing
Ore analysis is more complex than testing uniform metals because geological samples are often heterogeneous. Mineral grains, uneven distribution of elements, moisture, surface roughness, and variable particle size can all affect the X-ray signal measured by the analyser.
Handheld XRF is commonly used for fast field screening, grade control, and exploration decisions. It can help identify target and pathfinder elements quickly, but results are strongest when supported by suitable calibration, consistent sample presentation, and periodic laboratory checks.
For quantitative ore analysis, prepared samples usually provide more reliable results than rough, wet, or uneven material. Crushing, grinding, drying, mixing, and using appropriate sample cups can improve repeatability where the application requires stronger confidence.
Reviewing XRF for Ore Applications
For more detail on the method, review PAS’s overview of X-Ray Fluorescence technology. To compare field-ready instruments, explore PAS’s handheld XRF analysers through Portable Analytical Solutions, or contact our team to discuss ore type, elements of interest, and accuracy requirements.