Comparison of using regression and fundamental paramenter methods in the EDXRF analysis of hazardous elements

Abstract

The study used EDXRF technique to determine the concentrations of hazardous elements such as lead, chromium, mercury, bromine and cadmium. Quantitative analysis of these elements was done by using the Regression and standard Fundamental Parameter methods. The standard Fundamental Parameter method involved the used of one reference standard. Calibrations graphs using both methods were plotted and this produced straight lines with R2 value of more than 0.98. Accuracy of the standard Fundamental Parameter was then established by comparing its analysis value with the certified value of a reference standard. The result shows that the discrepancies of 0.18 – 1.09% were obtained for these elements.