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Speciation
Items for "Speciation"
Photochemical behaviour of Tc2OCl104– and TcnOy4n–2y+ in chloride media
The stabilities of the technetium polymers Tc2OCl104- and TcnOy4n-2y+ have been studied under light irradiation in 3 M chloride media with a pH range from 0 to 1.3...
Keywords: Technetium, Polymer, Photochemistry, Speciation
02/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagCondensation mechanisms of tetravalent technetium in chloride media
The condensation mechanisms of tetravalent technetium in chloride media were
studied in the pH range 0–1.5...
Keywords: Technetium, Condensation, Polymer, Speciation, Solubility
05/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagSpeciation of technetium and rhenium complexes by in situ XAS-electrochemistry
A spectro-electrochemical cell was developed in order to study the speciation of radio-elements in thermodynamic unstable redox states using in situ XAS spectroscopy...
Keywords: Technetium, Rhenium, EXAFS, Speciation, Spectro-electrochemistry
05/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagReduction behavior of uranium in the presence of citric acid
We examined the reduction behavior of UO22+ in citrate media at pH 2.0−7.0 by column electrodes...
Keywords: Uranium-citrate complex, Reduction, Speciation, Column electrode, Absorption spectrum
09/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagBiotransformation of plutonium complexed with citric acid
The presence of organic ligands in radioactive wastes is a major concern because of their potential for increasing the transport of radionuclides from disposal sites...
Keywords: Plutonium, Citric acid, Speciation, Biodegradation, Ionic strength
09/2006 | Radiochimica Acta, Oldenbourg WissenschaftsverlagA new time-resolved laser-induced fluorescence spectrometry (TRLFS) data acquisition procedure applied to the uranyl-phosphate system
TRLFS has been used to study the UVIO22+-PO43- system, in the 1 to 5 pH range, for [PO43-]=2×10-3 to 1.02×10-1 M range and [UO22+]=1.2×10-5 M...
Keywords: TRLFS, Uranyl, Phosphate, Speciation, Multi-exponential decays
03/2007 | Radiochimica Acta, Oldenbourg WissenschaftsverlagExperimental and computer modelling speciation studies of the effect of pH and phosphate on the precipitation of calcium and magnesium salts in urine
Keywords: acidification, calcium, magnesium, pH, Phosphate, Precipitation, Speciation
02/2006 | Clinical Chemical Laboratory Medicine, Walter de GruyterSpeciation of arsenic and chromium in the leachate from chromated copper arsenate (CCA) type C treated southern pine (Pinus spp.)
A 558-h laboratory leaching test (AWPA E-11) was carried out on both commercially and laboratory chromated copper arsenate (CCA) type C-treated southern pine...
Keywords: arsenic, chromated copper arsenate (CCA), chromatography, chromium, Leaching, Speciation, wood
02/2005 | Holzforschung, Walter de GruyterEffect of humic acid on sorption of neptunium on hematite colloids
Sorption of neptunium on hematite colloids has been studied at varying pH values (3–10) in absence and presence of humic acid using 239Np as a tracer...
Keywords: Neptunium, Humic acid, Hematite, Sorption, Speciation
09/2007 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag