LAUSR

X-ray fluorescence (XRF) is an ideal analytical technique for rapid elemental analysis in supporting forensic analysis, for exposure assessments and for product compositional analysis. Standardless calibration algorithms are widely used in modern XRF systems so providing, in many cases, near quantitative analysis, without recourse to needing matrix-matched standards. However if available, matrix standards can be used to further improve the performance of such algorithms and so provide better quantitative data. In this presentation, XRF analysis of bulk welding fume samples was performed, in supporting fume compositional studies required for product data sheets, and aided by the analysis of reference welding fume standards previously characterised by ICP-AES.