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Article
Retention behaviour of Cs(I), Sr(II), Tc(VII) and Np(V) on smectite-rich clay
The smectite-rich natural clay is being considered as a backfill and buffer material for Indian repository programme. In the present study, batch sorption measurements have been performed at trace concentratio...
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Article
Kinetics of Pu(IV) sorption by smectite-rich natural clay
Kinetics of sorption of Pu(IV) by smectite-rich clay has been studied at varying metal ion concentrations. Different concentrations were achieved using different isotopes of Pu, namely, 239Pu, 238Pu and 237Pu. 23...
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Article
Development of ion chromatography and capillary electrophoresis methods for the determination of Li in Li–Al alloy
Two methods were developed for determination Li content in Li–Al alloy by employing ion chromatography (IC) and capillary electrophoresis (CE) without any prior separation of Al matrix. In absence of suitable ...
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Article
Simultaneous determination of Cs and Sr in the high level waste by ion-chromatography
A method based on ion-chromatography has been developed for determination of Cs and Sr in high level waste (HLW) without matrix separation. The acidity of HLW (3 M HNO3) was decreased to 0.01 M by addition of NaO...
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Article
Sorption of americium from low-level liquid wastes by nanocrystalline MnO2
Nanocrystalline MnO2, synthesized by alcoholic hydrolysis of KMnO4, has been studied as a sorbent for removal of americium from low level liquid waste solutions. The synthesized MnO2 was found to have BET surface...
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Article
Estimation of 90Sr in reprocessing streams using pre-packed extraction chromatographic column of 4,4'(5')-bis(tert-butylcyclohexano)-18-crown-6 impregnated on amberlite XAD-7
This paper describes a method for the estimation of 90Sr in various PUREX and THOREX process streams. Radiostrontium present in the sample is loaded on an extraction chromatographic column containing 4,4’(5’)-bis...
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Article
Sorption of plutonium from low level liquid waste using nano MnO2
Nano-crystalline MnO2 has been synthesized by the method of alcoholic hydrolysis of KMnO4 and its potential as a sorbent for plutonium present in the low level liquid waste (LLW) solutions was investigated. The k...
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Article
XAFS spectroscopy study of Eu(III) sorption on γ-Alumina: effect of pH
L III edge X-ray Absorption Fine Structure (XAFS) spectroscopic study of Eu(III) sorbed on γ-alumina from aqueous solutions of different pH (values ranging from 6 to 8) has been...
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Article
Sorption of Eu(III) by amorphous titania, anatase and rutile
Sorption of Eu(III), an analogue of trivalent actinides (Am, Cm), by amorphous titania as well as different crystalline phases of titania, namely anatase and rutile, have been studied as a function of pH, using 1...
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Article
Characterization of high level waste for minor actinides by chemical separation and alpha spectrometry
The high level waste (HLW) generated from the reprocessing of the spent fuel of pressurized heavy water reactor has been characterized for the minor actinides. The radiation dose of the waste solution was redu...
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Article
Studies on recovery of uranium from fluoride matrix employing sonochemistry
Application of power ultrasound in chemical processes is recognized as an effective tool to solve many industrial problems encountered in processes involved in nuclear industry, particularly, digestion and lea...
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Article
Removal of Cs from simulated high-level waste solutions by extraction using chlorinated cobaltdicarbollide in a mixture of nitrobenzene and xylene
Efficacy of chlorinated cobaltdicarbollide in a modified diluent, 20% nitrobenzene in xylene was tested for the extraction and recovery of Cs from simulated high-level waste (HLW) solutions generated from PHWR...
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Article
Separation of no-carrier-added 149Gd from 12C activated natural praseodymium matrix
149Gd was produced from the 12C induced reaction on natural praseodymium target. No-carrier-added (nca) 149Gd was separated from the bulk target matrix by liquid–liquid extraction (LLX) u...
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Article
Sorption of Am(III) on natural sediment: experiment and modeling
Release of long-lived radioactivity to the aquatic bodies from various nuclear fuel cycle related operations is of great environmental concern in view of their possible migration into biosphere. This migration...
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Article
Separation of no-carrier-added 107,109Cd from proton induced silver target: classical chemistry still relevant
The classical chemistry like precipitation technique is relevant even in modern days trans-disciplinary research from the view point of green chemistry. A definite demand of no-carrier-added (nca) cadmium trac...
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Article
Recovery and pre-concentration of americium (III) from dilute acid solutions using an emulsion liquid membrane containing di-2-ethylhexyl phosphoric acid (D2EHPA) as extractant
An emulsion liquid membrane (ELM) containing di-2-ethylhexylphosphoric acid (D2EHPA) as the carrier extractant and SPAN 80 as the surfactant was used to pre-concentrate Am3+ from dilute acid solutions. Effects of...
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Article
Effect of humic acid on the sorption of technetium on hematite colloids using 95mTc and 96Tc as tracers
Sorption of technetium on hematite colloids, at varying pH (3–10), has been studied in absence and presence of humic acid using 95mTc-96Tc radiotracers. Technetium was found to be weakly sorbed on hematite at low...
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Article
Sodium diffusion in sodium borosilicate glass used for immobilization of high level liquid waste
Diffusion of sodium in Mn and Ti bearing sodium borosilicate glass used for the immobilization of the high level waste at the Waste Immobilization Plant, Tarapur has been studied by heterogeneous isotopic exch...
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Article
Mass Distribution in 12C Induced Fission of 232Th
Formation cross sections of several fission products have been determined using recoil catcher technique followed by gamma-ray spectrometry in 12C induced fission of 232Th at E lab ...
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Article
Separation of carrier-free111In formed in the12C+Rh reaction
An alternative reaction route for the production of111In from rhodium target bombarded with a12C beam has been developed. Sulfate fusion was adapted for dissolution of the irradiated rhodium metal target. Indium ...