Direct and simultaneous determination of copper and manganese in seawater with a multielement graphite furnace atomic absorption spectrometer |
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| Affiliation: | 1. School of Natural Science, Far Eastern Federal University, Vladivostok 690950, Russian Federation;2. School of Biomedicine, Far Eastern Federal University, Vladivostok 690950, Russian Federation;3. A.V. Zhirmunsky Institute of Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690059, Russian Federation;4. G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690022, Russian Federation;1. Federal Center for Technological Education Celso Suckow da Fonseca – CEFET/RJ, Nova Friburgo, Brazil;2. Department of Nuclear Engineering, Federal University of Rio de Janeiro – PEN/COPPE/UFRJ, Rio de Janeiro, Brazil;3. Brazilian Nuclear Energy Commission – CNEN, Rio de Janeiro, Brazil;1. Ifremer, Mediterranean Centre, BP 330, F-83507 La Seyne-sur-Mer, France;2. Université Grenoble Alpes, ISTerre, BP 53, F-38041 Grenoble, France;3. Université de Perpignan, Cnrs-Cefrem, 52, Ave. P. Alduy, F-66860 Perpignan Cedex, France;4. Université de Bordeaux, Epoc, F-33615 Pessac, France;5. Ifremer, Atlantic Centre, BP 21105, F-44311 Nantes Cedex 03, France;6. Université P. et M. Curie, Lobb, F-66651 Banyuls-sur-Mer, France;1. Ghent University, Faculty of Bioscience Engineering, Laboratory of Environmental Toxicology and Aquatic Ecology, J. Plateaustraat 22, B-9000 Ghent, Belgium;2. Research Unit of Environmental and Evolutionary Biology, University of Namur, Rue de Bruxelles 61, 5000 Namur, Belgium;3. Royal Belgian Institute of Natural Sciences, Management Unit of the North Sea Mathematical Model, 2e en 23e Linieregimentsplein, B-8400 Oostende, Belgium |
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| Abstract: | The direct and simultaneous determinations of Cu and Mn in seawater using a multielement graphite furnace atomic absorption spectrometer (Perkin-Elmer SIMAA6000) are described. Three kinds of chemical modifier (Mg(NO3)2, Pd(NO3)2 and a mixture of these) were tested. The matrix interferences were removed completely so that a simple calibration curve method could be used to determine Cu and Mn in seawater from the open ocean using Pd or a mixture of Pd and Mg as the chemical modifier. The relative standard deviations (RSDs) for the simultaneous determination of Cu and Mn in seawater from open ocean are 10% or less, and the detection limits were 0.07 μg 1−1 for Cu and 0.10 μg 1−1 for Mn, using Pd as the chemical modifier. The accuracy of the method is confirmed by analysis of four kinds of certified reference saline waters. |
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