Quantitative SPLITT fractionation of lagoon sediments |
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Authors: | Blo Gabriella Conato Chiara Contado Catia Fagioli Francesco Dondi Francesco |
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Institution: | Department of Chemistry, University of Ferrara, Via Borsari 46, 44100 Ferrara, Italy. gbc@unife.it |
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Abstract: | In this work, SPLITT Fractionation (split flow thin cell) is used to sort hydrodynamically sedimented particles coming from the Sacca di Goro, a lagoon-like system close to the Po River delta (Italy). First the possibility of performing quantitative mass separations with a SPLITT cell apparatus was checked on a standard silica sample of known particle size distribution (PSD). Environmental sediment samples and relative SPLITT sub-fractions were subject to Inductive Coupled Plasma--Atomic Emission Spectroscopy (ICP-AES) characterization for the following elements: Al, Fe, Cd, Cr, Cu, Ni, Mn, Pb and Zn. The distribution of these metals by particle size fractions has been investigated. The accuracy of the entire separation procedure has been also evaluated. |
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