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Multi‐element analysis of sea water from Sepetiba Bay, Brazil, by total reflection x‐ray fluorescence spectrometry using synchrotron radiation
Author(s) -
Costa A. C. M.,
Anjos M. J.,
Lopes R. T.,
Pérez C. A.,
Castro C. R. F.
Publication year - 2005
Publication title -
x‐ray spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.447
H-Index - 45
eISSN - 1097-4539
pISSN - 0049-8246
DOI - 10.1002/xrs.779
Subject(s) - bay , x ray fluorescence , chemistry , fluorescence spectrometry , analytical chemistry (journal) , total internal reflection , mass spectrometry , seawater , filtration (mathematics) , trace element , environmental chemistry , mineralogy , fluorescence , geology , chromatography , oceanography , optics , physics , statistics , mathematics , organic chemistry
Trace elements in the surface waters of Sepetiba Bay were studied by total reflection x‐ray fluorescence spectrometry using synchrotron radiation (SRTXRF). The bay is located in the south of Rio de Janeiro State, Brazil. The water samples were collected at 21 sampling stations, prepared in order to preconcentrate the metallic elements with ammonium pyrrolidinedithiocarbamate and to remove the salt matrix. Samples were spiked with an internal standard (Se) and the precipitated dithiocarbamates of trace elements were separated by filtration through a Millipore filter, then transferred to a Perspex reflector and digested with HNO 3 for SRTXRF measurement. Elemental concentrations of Cr, Mn, Fe, Co, Ni, Cu, Zn, Mo and Pb were determined and a comparison was made between the results obtained and the values given in the literature for sea water. Copyright © 2005 John Wiley & Sons, Ltd.