Determination of rare earth elements in uranium materials by ICP-MS and ICP-OES after matrix separation by solvent extraction with TEHP

Baghaliannejad, Reza; Aghahoseini, Masoud; Amini, Mohammad K.

doi:10.1016/j.talanta.2020.121509

Cited by 28 publications

(7 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The analysis of metal ions concentration in the leachate of marine sediment sample was performed using an inductively coupled plasma mass spectrometer (ICP-MS, Elan 9000, Perkin Elmer, Waltham, MA, USA). The concentrations of metal ions (U, Fe, Mn, Cu, Zn, Pb, Ni, Cd, Co, and Hg) and As were analyzed using an inductively coupled plasma mass spectrometer (ICP-MS, Elan 9000, Perkin Elmer, Waltham, MA, USA) [73,74]. The standard curves for U, Cu, Zn, Pb, Ni.…”

Section: Sorption Tests 241 Sorption and Desorption On Synthetic Solutionsmentioning

confidence: 99%

Effect of agitation mode (mechanical, ultrasound and microwave) on uranium sorption using amine- and dithizone-functionalized magnetic chitosan hybrid materials

Elwakeel

Hamza

Guibal

2021

Chemical Engineering Journal

View full text Add to dashboard Cite

Magnetic chitosan nanoparticles, activated by glycidyl methacrylate, can be functionalized by grafting dieth-ylenetriamine (DETA) and dithizone for improving U(VI) sorption at pH around 5. The physicochemical prop-erties of the materials have been characterized by a wide variety of analytical techniques. Uranyl sorption increases with the pH (progressive deprotonation of amine and sulfur groups). Uptake kinetics are controlled by the agitation mode: the equilibrium time is reduced while using ultrasonic treatment (especially at highest frequency: 80 kHz): the cavitation effect improves the accessibility to internal reactive groups (sorption capacity is increased). The diffusivity coefficient is increased by 4-5 times. In the case of microwave, the sorption capacity is significantly reduced (especially for R-Dithizone, down to 0.8 mmol U g − 1 ) because of temperature increase, which limits the sorption (exothermic mechanism). Mass transfer is tremendously enhanced: equilibrium time is less than 60 s (30 min for ultrasonic treatment and 120 min with mechanical agitation). Sorption capacity at monolayer saturation (Langmuir) decreases with increasing the temperature from 2.20 to 1.74 mmol U g − 1 for R-Amine (from 1.77 to 1.22 mmol U g − 1 for R-Dithizone). The sorption enthalpy is close to − 19.7 kJ mol − 1 for R-Amine (with positive entropy change, ΔS • ) and − 34.2 kJ mol − 1 for R-Dithizone (negative ΔS • ). Metal desorption is highly efficient using 0.3 M Na 2 CO 3 /0.1 M H 2 O 2 solution. Metal desorption is instantaneous (less than 1 min) and complete when using microwave treatment. The ultrasonic treatment allows improving desorption efficiency and decreasing the concentration of the eluent compared with mechanical agitation. The process is successfully applied for uranyl separation from the leachates of marine sediments, especially in the presence of Complexon III (masking agent).

show abstract

Section: Sorption Tests 241 Sorption and Desorption On Synthetic Solutionsmentioning

confidence: 99%

Effect of agitation mode (mechanical, ultrasound and microwave) on uranium sorption using amine- and dithizone-functionalized magnetic chitosan hybrid materials

Elwakeel

Hamza

Guibal

2021

Chemical Engineering Journal

View full text Add to dashboard Cite

show abstract

“…Various separation technologies are standardized and employed for Uranium separation using several extractants or ligands. There are two methods of matrix separation, [20b] (i) impurities are extracted from Uranium matrix using ion exchange / extraction chromatography (Chelex‐100, TRU resin), [21] (ii) Uranium is extracted from the solution leaving the impurities in aqueous phase e. g., solvent extraction of U using tri‐n‐butyl phosphate (TBP)/CCl 4 , [22] tri‐n‐octyl phosphine oxide (TOPO)/CCl 4 , di (2‐ethyl hexyl) phosphoric acid (DEHP) /toluene, [23] Cyanex‐272/xylene [24] . Our major objective is to standardize the NAA method with short‐lived activation products formed after short time irradiation at PCF, thus here we have employed the conventionally used solvent extraction procedure using TBP/dodecane and validated the analytical method by adding known amounts of neutron poisons (Sm, Dy and Gd).…”

Section: Introductionmentioning

confidence: 99%

Optimization and Applications of Instrumental and Preconcentration Neutron Activation Analysis Methods for Rapid Determination of Selected REE by Utilizing their Short‐Lived Activation Products**

Samanta,

Sengupta,

Gupta

et al. 2024

ChemistrySelect

View full text Add to dashboard Cite

Determination of Rare Earth Elements (REEs) using spectroscopic methods is challenging. Conventional Instrumental Neutron Activation Analysis (INAA) method utilizing Pneumatic Carrier Facility (PCF) of Dhruva research reactor has been optimized with the short‐lived isotopes such as 161Gd, 165mDy and 153/155Sm for quantification of Gd, Dy and Sm respectively. Such isotopes are difficult to observe by conventional INAA with longer cooling periods owing to their very short half‐lives (1–3 mins). In this work, such isotopes are not only observed but also utilized as activation product for rapid determination of these REEs. The standardized method has been utilized for the first time in liquid samples involving nuclear fuel like U3O8 wherein TBP/n‐dodecane has been applied for chemical separation of Uranium prior to analysis. The INAA method has also been applied for validating the stoichiometry of Gd in Gd3+ co‐doped Zn2P2O7:Tb3+ green emitting solid‐state phosphors, which plays a very pivotal role in sensitizing the terbium ion in its performance for solid state lighting. We believe with huge current demand of REEs in research, science and technology; INAA can be a game changer wherever needed for quantification with high precision and accuracy and can also be extended to other REEs of interest.

show abstract

“…Thus, separation technologies including solvent extraction and ion exchange chromatography have been developed to minimize spectral interferences resulting from high concentrations of U relative to the trace elements. [7][8][9][10][11][12][13][14][15] Recent efforts have focused on minimizing sample size, reducing method time, and automation to improve these highly effective separations. 2 Separations are generally assumed to be the superlative way to obtain quality ICP-OES results for each element at all trace-level concentrations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of trace elements in uranium by inductively coupled plasma-optical emission spectroscopy, design of experiments, and partial least squares regression

Sadergaski

Manard

Andrews

2023

J. Anal. At. Spectrom.

View full text Add to dashboard Cite

show abstract

Determination of rare earth elements in uranium materials by ICP-MS and ICP-OES after matrix separation by solvent extraction with TEHP

Cited by 28 publications

References 28 publications

Effect of agitation mode (mechanical, ultrasound and microwave) on uranium sorption using amine- and dithizone-functionalized magnetic chitosan hybrid materials

Effect of agitation mode (mechanical, ultrasound and microwave) on uranium sorption using amine- and dithizone-functionalized magnetic chitosan hybrid materials

Optimization and Applications of Instrumental and Preconcentration Neutron Activation Analysis Methods for Rapid Determination of Selected REE by Utilizing their Short‐Lived Activation Products**

Analysis of trace elements in uranium by inductively coupled plasma-optical emission spectroscopy, design of experiments, and partial least squares regression

Contact Info

Product

Resources

About