Browsing by Author "Kiliari, T."
Now showing items 1-12 of 12
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Alpha spectroscopic analysis of actinides (Th, U and Pu) after separation from aqueous solutions by cation-exchange and liquid extraction
Kiliari, T.; Pashalidis, Ioannis (2010)The radioactivity concentration of 236Pu, 232U and 228Th in aqueous samples has been determined by means of alpha spectroscopy after chemical separation and pre-concentration of the radionuclides by cation exchange and ...
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Americium and samarium determination in aqueous solutions after separation by cation-exchange
Kiliari, T.; Pashalidis, Ioannis (2014)The concentration of trivalent americium and samarium in aqueous samples has been determined by means of alpha-radiometry and UV-Vis photometry, respectively, after chemical separation and pre-concentration of the elements ...
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Determination of aquatic radon by liquid scintillation counting and airborne radon monitoring system
Kiliari, T.; Pashalidis, Ioannis (2008)This paper presents an airborne radon monitoring (RM) system for aquatic radon determination after out-gassing of radon from the aqueous sample and compares this method with the standard ASTM method for radon analysis in ...
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The effect of physicochemical parameters on the separation recovery of plutonium and uranium from aqueous solutions by cation exchange
Kiliari, T.; Pashalidis, Ioannis (2010)The effect of physicochemical parameters such as pH, salinity (e.g. [NaCl]) and competitive cation (e.g. Ca 2+ and Fe 3+) concentration on the separation recovery of plutonium and uranium from aqueous solutions by cation ...
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Lithological and seasonal variations in radon concentrations in Cypriot groundwaters
Kiliari, T.; Tsiaili, A.; Pashalidis, Ioannis (2010)The paper presents and discusses radon activity concentrations in Cypriot groundwater systems as a function of the background lithology and seasonal/meteorological conditions using an airborne radon monitoring system (ARM) ...
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Seasonal variation of the alpha-radioactivity concentration in natural water systems in Cyprus
Tsiaili, A.; Kiliari, T.; Pashalidis, Ioannis (2011)The study deals with the seasonal variation of the total alpha-radioactivity and the U-238/234 radioactivity concentration of ground waters in Cyprus. The radiometric measurements were performed after pre-concentration and ...
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Seasonal variation, chemical behavior and kinetics of uranium in an unconfined groundwater system
Efstathiou, Maria; Aristarchou, T.; Kiliari, T.; Demetriou, Antri; Pashalidis, Ioannis (2014)The seasonal changes in the concentration of uranium in an unconfined groundwater system in Cyprus have been investigated and compared to corresponding changes of boron and salinity, to better understand the chemical ...
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Selective separation of actinyl(V,VI) cations from aqueous solutions by Chelex-100
Kiliari, T.; Pashalidis, Ioannis (2012)Experimental studies on the selectivity of Chelex-100 resin for the separation of actinide cations at different oxidation states (III, IV, V and VI) from aqueous solution have shown that Chelex-100 presents increased ...
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Selective separation of radium and uranium from aqueous solutions by Chelex-100
Kiliari, T.; Pashalidis, Ioannis; Symeopoulos, B. D. (2012)The affinity of Chelex-100 for radium has been investigated as a function of pH and salinity compared to the Chelex-100 affinity for uranium to assess possible application of the resin for the selective separation of the ...
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Simplified alpha-spectroscopic analysis of uranium in natural waters after its separation by cation-exchange
Kiliari, T.; Pashalidis, Ioannis (2010)A relatively rapid, economic and robust procedure is described for the alpha-radiometric analysis of natural waters. The analysis is performed by alpha-spectroscopy after pre-concentration and separation of uranium by ...
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Thorium determination in aqueous solutions after separation by ion-exchange and liquid extraction
Kiliari, T.; Pashalidis, Ioannis (2011)The concentration of thorium in aqueous samples has been determined by means of alpha-spectroscopy and UV-Vis photometry after chemical separation and pre-concentration of the actinide by cation exchange and liquid-liquid ...
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Uranium analysis in Cypriot groundwaters by total alpha-radiometry and alpha-spectroscopy
Efstathiou, Maria; Kiliari, T.; Pashalidis, Ioannis (2011)Two different alpha-radiometric methods (e.g. alpha-spectroscopy and alpha-particle counting) have been applied to the determination of uranium in Cypriot groundwater samples after separation of the radionuclides by cation ...