Characterization &amp; categorization of garnet samples for major and minor constituents by energy dispersive X-ray fluorescence spectroscopy

Jayabun, Sk.; Pathak, Sunita; Sengupta, Arijit

doi:10.1016/j.nima.2021.165854

Cited by 4 publications

(1 citation statement)

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“…The optimized instrumental and experimental parameters have been summarized elsewhere. 42–44 Sorption experiments were carried out in a water bath with a thermostat, which was procured from Lab Enterprise, Mumbai, India. The shaker had a capacity of 108 L with outer dimensions of 700 mm × 500 mm × 900 mm.…”

Section: Methodsmentioning

confidence: 99%

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Salunkhe

Chauhan

Sengupta

2022

Environ. Sci.: Adv.

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Section: Methodsmentioning

confidence: 99%

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Salunkhe

Chauhan

Sengupta

2022

Environ. Sci.: Adv.

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Development of ICP‐OES Based Analytical Method with Prior Preferential Removal of Emission Rich Matrix by Elevated Temperature Ionic Liquid Based Extractive Mass Transfer for Determination of Metallic Constituents in U‐Mo Alloy: The Next Generation Nuclear Fuel

et al. 2022

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An (ICP‐OES) based analytical methodology was developed for the determination of metallic constituents (Al, Ca, Co, Cr, Cu, Fe, Ga, In, Mn, Mg, Na, Ni, Si, V, W and Zn) at minor and trace level in U−Mo alloy fuel after preferential separation of emission rich major matrix using TBP‐HDBO‐NTf2 without any compromise on the determination of analytes at trace levels. Application of ionic liquid, HDBO‐NTf2 drastically reduced the time of analysis (30 min reduction per sample) and generation of toxic organic waste (20 mL per sample) containing U and Mo. The method was optimized by identification of analytical lines of the elements free from spectral interference of U and Mo, establishing the calibration curves using those lines and evaluation of analytical performances (detection limit, linear dynamic range etc.) in U−Mo matrix. The preferential separation of U and Mo were found to follow anion exchange and cation exchange mechanism involving UO2((NO)3)3.2TBP− and MoO2(NO3) TBP+ species, respectively, which differ in their conventional separation by solvation mechanism involving ML2 and ML1 neutral species, respectively. Preferential separation by HDBO‐NTf2 based system can be effectively used for determination of analytes of 10 ppm concentration at 10 % error limit. The total uncertainty in estimation of each analyte have been estimated. The real sample analyses data were compared to that obtained by n‐dodecane based ICP‐OES method and direct analysis of Energy Dispersive X‐ray Fluorescence spectroscopic (EDXRF) method. The data were found to be in good agreement with each other. The experimentally obtained results were subjected to t‐test with 95 % confidence limit and 10 degrees of freedom. The texpt was found to be less than tcrit 2.228 revealing reliability of the methods. The experimentally obtained variance values (Fexpt) were found to be less than Fcrit∼2.980 revealing the variance values are within acceptable statistical error limit.

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Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu³⁺Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide

Ghosh,

Pandey,

Sengupta

et al. 2023

Inorg. Chem.

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Novel amide ligands in the ionic liquid (1-hexyl-3methylimidazolium bis(trifluoromethylsulfonyl)imide) were utilized for the liquid−liquid biphasic mass transfer of Eu 3+ ions from aqueous acidic waste solution. The cation exchange mechanism was found to be operative with the formation of [Eu(NO 3 ) 2 L 3 ] + species (L = 4-chloro-N-(1-methyl-1H-pyrazol-3-yl)picolinamide). However, the presence of an inner-sphere water molecule was revealed by density functional theory (DFT) calculations. The viscosity-induced slower kinetics was evidenced during mass transfer, which was improved by increasing temperature. The process was exothermic in nature. The improvement in the kinetics of extractive mass transfer at higher temperatures is evinced by a reduction in the distribution ratio value. The spontaneity of the reaction was evidenced through the negative Gibbs free energy value, whereas the process enhances the entropy of the system, probably by releasing water molecules at least partially during complexation. The structures of bare ligands and complexes have been optimized by using DFT calculations. A high value of complexation energy, solvation energy, and associated enthalpy and free energy change reveal the efficacy in binding Eu with O and N donor atoms. In addition, natural population analysis, atoms-in-molecules analysis, and energy decomposition analysis have been employed to explore the nature of bonding existing in Eu−O and Eu−N bonds.

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Characterization & categorization of garnet samples for major and minor constituents by energy dispersive X-ray fluorescence spectroscopy

Cited by 4 publications

References 44 publications

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Development of ICP‐OES Based Analytical Method with Prior Preferential Removal of Emission Rich Matrix by Elevated Temperature Ionic Liquid Based Extractive Mass Transfer for Determination of Metallic Constituents in U‐Mo Alloy: The Next Generation Nuclear Fuel

Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu³⁺Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide

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Characterization & categorization of garnet samples for major and minor constituents by energy dispersive X-ray fluorescence spectroscopy

Cited by 4 publications

References 44 publications

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

The application of food/agro-waste and spent household products for the environmentally benign separation of thorium

Development of ICP‐OES Based Analytical Method with Prior Preferential Removal of Emission Rich Matrix by Elevated Temperature Ionic Liquid Based Extractive Mass Transfer for Determination of Metallic Constituents in U‐Mo Alloy: The Next Generation Nuclear Fuel

Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu3+Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide

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Experimental and Theoretical Investigation on the Extractive Mass Transfer of Eu³⁺Ions Using Novel Amide Ligands in 1-Hexyl-3-methylimidazolium Bis(trifluoromethylsulfonyl)imide