A First Evaluation of the Analytical Capabilities of the New X-Ray Fluorescence Facility at International Atomic Energy Agency-Elettra Sincrotrone Trieste for Multipurpose Total Reflection X-Ray Fluorescence Analysis

A. KARYDAS; I. QUERALT; M. HIDALGO; C. STELI; A. MIGLIORI; J. PROST; J.J. LEANI; E. MARGUI

SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY

PERGAMON-ELSEVIER SCIENCE LTD

Lugar: Amsterdam; Año: 2018 vol. 145 p. 8 - 19

0584-8547

The aim of the work is to present a systematic evaluation of the analytical capabilities of the new X-ray fluorescencefacility jointly operated between the International Atomic Energy Agency and the Elettra Sincrotrone Triestefor multipurpose total reflection X-ray fluorescence analysis.The analytical performance of the XRF beamline end-station (IAEAXspe) was systematically evaluated underTXRF excitation geometry by analyzing different types of aqueous (lake, waste and fresh water) and solid (soil,vegetal, biological) certified reference materials using an excitation energy of 13.0 keV (for the purpose ofmultielemental analysis). The results obtained for both types of samples in terms of limits of detection and accuracywerealso comparedwith those obtained using laboratory X-ray tube based TXRF systems with different features(including Mo andWX-ray tube systems). Taking advantage of the possibility towork under high vacuum,the IAEAXspe set-up instrumental sensitivity was also determined using an excitation energy of 6.2 keV to explorethe possibilities for light elements determination.A clear improvement of the element detection limits is achievedwhen comparing this facility to conventional Xraytube based TXRF systems highlighting the benefits of using themonoenergetic synchrotron exciting radiationand the ultra-high vacuum chamber in comparison with conventional laboratory systems.The results of the present work are discussed in view of further exploitation of the facility for different environmentaland biological related applications.