Understanding Qualitative and Quantitative XRF Results
Qualitative XRF analysis focuses on elemental identification. The analyser measures the energies of fluorescent X-rays to determine which elements are present. This is useful for initial material screening, identifying unexpected elements, and assessing the general composition of unknown samples.
Quantitative XRF analysis uses X-ray intensities, calibration models, and mathematical corrections to calculate elemental concentrations. Results may be reported as percentages or parts per million, depending on the sample, element, and instrument configuration.
The appropriate approach depends on the testing objective. Qualitative results may be sufficient for preliminary screening, while grade control, alloy verification, and environmental assessments often require quantitative information. Accuracy can be affected by matrix composition, moisture, particle size, sample preparation, and calibration suitability.
Choosing the Appropriate XRF Analysis Method
For further information, review PAS’s overview of X-Ray Fluorescence technology. To assess suitable instruments, explore the range of handheld XRF analysers available through Portable Analytical Solutions, or get in touch to discuss your elemental identification and concentration measurement requirements.