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The X-ray fluorescence method is known as a laboratory method and one of the few atomic spectroscopy methods used in many fields. The process of emission of the characteristic X-rays is called “X-ray fluorescence” (XRF). The objectives of this research study are optimization of the XRF portable system geometry and the use of the fundamental parameters method to calculate the concentrations of elements in environmental samples using portable systems. Since this method is quick in getting results and does not destroy the sample, it is widely used both in research and in the analysis of industrial products for materials in the field of mineralogy, geology, environmental analysis of water, air, etc. Various experiments have led to the optimization of the geometry system, as the distances’ minimization, angles optimization, and the assessment of the beam spot in the position of the sample. Most of the data collected are used as initial data in the ADMCA program that uses fundamental parameters (FP-XRF) for calculating the concentrations of elements in environmental samples. Errors in calculating the concentrations of the sediment and soil samples when we introduce the approximate content of light elements can be eligible for geochemical studies. During the research, several areas that can be used in the future to improve the results are identified.

THE USE OF THE FUNDAMENTAL PARAMETERS METHOD TO CALCULATE THE CONCENTRATIONS OF ELEMENTS IN ENVIRONMENTAL SAMPLES USING XRF PORTABLE SYSTEMS