Voltammetric method for the determination of Zn, Cd, Pb, Cu and Ni in interstitial water |
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Authors: | Jerzy Golimowski and Teresa Szczepaska |
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Institution: | (1) Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland;(2) State Geological Institut, Marine Geology Branch, Polna 62, 81–740 Sopot, Poland |
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Abstract: | To determine heavy metals in interstitial water from Baltic sea sediments a sampling method with subsequent voltammetric determination is described. Copper, lead, zinc and cadmium are determined in the UV-digested samples of interstitial water by differential pulse anodic stripping voltammetry while nickel is determined by adsorption voltammetry. The determination of five metals in one sample in a wide concentrations range is possible using a low cost apparatus. The profiles of the metal concentrations in interstitial water of subsequent layers of sediments, sampled from Puck Bay, Gda sk Bay, the Bornholm area and the S upsk area are presented. |
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