کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1165525 1491069 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High resolution characterization of uranium in sediments by DGT and DET techniques ACA-S-12-2197
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
High resolution characterization of uranium in sediments by DGT and DET techniques ACA-S-12-2197
چکیده انگلیسی

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.

.Figure optionsDownload as PowerPoint slideHighlights
► Probe for U detection by diffusive gradient in thin films technique is presented.
► Selective and spatially resolved depth profiles of U in sediments are monitored.
► U isotopic ratio profiles in DGT and DET measurements are obtained by ICP MS.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 763, 6 February 2013, Pages 50–56
نویسندگان
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