Abstract
The purpose of this work was to evaluate the instrumental detection limit and sensitivity for determination of elemental composition of 47Ag, 48Cd, and 50Sn elements in the standard liquid solution with highly advanced polychromatic wavelength dispersive X‐ray fluorescence (PC‐WDXRF) spectrometer equipped with 45Rh X‐ray tube. To improve the sensitivity and detection limit, the bremsstrahlung coming from 45Rh source were reduced by choosing suitable primary beam filters (Al and Cu). Instrumental measuring parameters as well as study of linear calibration curves of K and L shell spectral lines were evaluated to select the best conditions for 47Ag, 48Cd, and 50Sn quantification. The detection limit of Lα spectral lines were found to be ~3 to 5 times lower than Kα spectral lines which results in high sensitivity.
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