High resolution characterization of uranium in sediments by DGT and DET techniques ACA-S-12-2197

0386122 - ÚIACH 2013 RIV NL eng J - Journal Article
Gregušová, Michaela - Dočekal, Bohumil
High resolution characterization of uranium in sediments by DGT and DET techniques ACA-S-12-2197.
Analytica Chimica Acta. Roč. 763, FEB 6 (2013), s. 50-56. ISSN 0003-2670. E-ISSN 1873-4324
R&D Projects: GA ČR GAP503/10/2002
Institutional support: RVO:68081715
Keywords : Diffusive gradient in thin films technique * Diffusive equilibrium technique * Uranium * Sediment
Subject RIV: CB - Analytical Chemistry, Separation
Impact factor: 4.517, year: 2013
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Diffusive equilibrium (DET) and diffusive gradient in thin film (DGT) techniques with an inductively coupled plasma mass spectrometry detection of elements were applied to characterize uranium, manganese, iron and 238U/235U isotopic ratio depth profiles in sediment pore water at high spatial resolution and to monitor uranium uptake/remobilization processes in uranium spiked sediment core samples under laboratory, well controlled conditions. Modified constrained sediment DGT probes, packed with Spheron- Oxin® resin gel, were employed for selective uranium measurements. Spatially resolved DET and DGT responses were indicative of local redistribution of uranium in naturally uranium poor and rich sediments.
Permanent Link: http://hdl.handle.net/11104/0217074