Energy dispersive X-ray fluorescence analysis of marine pollution indicators
- 50 Downloads
- 1 Citations
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.
Keywords
Microalgae Marine Sediment Marine Alga Elemental Sensitivity Fluorescence ExcitationPreview
Unable to display preview. Download preview PDF.
References
- 1.Pérez Díaz R., M. Martínez Canals, A. Rodríguez Vargas, Caracterización de metales pesados en los exoesqueletos de corales escleractíneos cubanos, VIII Congreso Internacional de arrecifes coralinos, 24–29 jun 1996, Panama.Google Scholar
- 2.A. Mendoza, R. Perez, F. Benitez, 5th Intern. Conf. on Applications of Physics in Medicine and Biology, ICTP, Trieste, Sept. 1996.Google Scholar
- 3.J. S. Iwanczyk, B. E. Patt, Y. J. Wang, 9th Intern. Workshop on Room Temperature Semiconductor X and Gamma Ray Detectors, Grenoble, Sept. 1995.Google Scholar
- 4.National Institute for Environmental Studies. Japan Environment Agency, Yatabe-machi, Tsukuba, Ibaraki 305, Japan.Google Scholar
- 5.Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161, Rome, Italy.Google Scholar
- 6.A. Mendoza, J. J. Meitín, R. Cesareo, F. de la Fuente, Absolute Emission-transmission method of energy dispersive X-ray fluorescence for micro-algae analysis, CISB Rap.01.96. Jan. 1996, Italy.Google Scholar
- 7.R. Cesareo, G. E. Gigante, A. Mendoza, A method for forward energy-dispersive X-ray fluorescence analysis of thin and intermediate samples, (work in preparation) 1997.Google Scholar
- 8.H. Aiginger, P. Wobrauschek, Nucl. Instr. Meth., 114 (1974) 157.CrossRefGoogle Scholar