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Items for "Phosphate"

Effects of phosphate and ionic strength upon uranium(VI) sorption onto alumina as a function of pH

The sorption edges and the sorption isotherms of UO₂²⁺ onto alumina were determined by a batch technique in the presence and absence of phosphate at pH range 3–6, ionic strength range 0.05–0.5 mol/L and UO₂²⁺ concentrations 10^-5–10^-4 mol/L...

Keywords: Uranium, Sorption, Alumina, Phosphate, Ionic strength

04/2006 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag

A new time-resolved laser-induced fluorescence spectrometry (TRLFS) data acquisition procedure applied to the uranyl-phosphate system

TRLFS has been used to study the U^VIO₂²⁺-PO₄^3- system, in the 1 to 5 pH range, for [PO₄^3-]=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 Wissenschaftsverlag

Surface complexation modeling of the effects of phosphate on uranium(VI) adsorption

Previous published data for the adsorption of U(VI) and/or phosphate onto amorphous Fe(III) oxides (hydrous ferric oxide, HFO) and crystalline Fe(III) oxides (goethite) was examined...

Keywords: Uranium, Phosphate, Iron Oxides, Adsorption, modeling

05/2007 | Radiochimica Acta, Oldenbourg Wissenschaftsverlag

Experimental and computer modelling speciation studies of the effect of pH and phosphate on the precipitation of calcium and magnesium salts in urine

Background: pH and phosphate concentration are the major determinants of precipitation in urine of the salts of calcium and magnesium...

Keywords: acidification, calcium, magnesium, pH, Phosphate, Precipitation, Speciation

02/2006 | Clinical Chemical Laboratory Medicine, Walter de Gruyter

Klotho as a regulator of oxidative stress and senescence

The klotho gene functions as an aging-suppressor gene that extends life span when overexpressed and accelerates aging-like phenotypes when disrupted in mice...

Keywords: fibroblast growth factor (FGF), IGF, Phosphate, vitamin D, Wnt

03/2008 | Biological Chemistry, Walter de Gruyter