Energy dispersive X-ray fluorescence analysis of marine pollution indicators |
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Authors: | A. Mendoza R. Cesareo M. Valdés J. J. Meitín R. Pérez Y. Lorente |
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Affiliation: | (1) National Center for Scientific Research (CNIC), P.O. Box 6880, 10600 Havana, Cuba;(2) Institute of Mathematics and Physics, University of Sassari, Italy;(3) Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, Padova, Italy;(4) Institute of Oceanology, Havana, Cuba |
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Abstract: | The present work shows a methodology for the application of EDXRF with a X-ray tube, in the analysis of elements in the following matrices: microalgae, marine algae, marine sediments and corals. Various methods were applied: one using a relative external standard, a fundamental parameters method, an absolute method based on elemental sensitivity, a method which used X-ray fluorescence excitation measured in the back side of the sample for low contents heavy elements determination and a TRXRF method. The thin layer samples were prepared using a plastic resin. The analyzed samples of marine algae, marine sediments and corals belong to a marine ecosystem from the North of Havana City, the most affected area by natural metereological phenomena and human impact. |
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