Solvent extraction behaviors of Americium(III) and Europium(III) using 2-hydroxy-2-methyloctanoic acid and 2-hydroxy-2-trifluoromethyloctanoic acid

Seike, Moe; Eguchi, Mai; Shinohara, Atsushi; Yoshimura, Takashi

doi:10.1007/s10967-014-3482-6

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…Popov et al [24] reported the use of 10% triiso-octylamine (TIOA) in xylene to separate americium from uranium, polonium, and plutonium in Bulgarian soil. One of the extractants, 2-hydroxy-2-trifluoromethyloctanoic acid (Hhfo), was synthesized and characterized for separating americium and lanthanides, and the maximum separation factor of Eu and Am by Hhfo reached 2.31 [69]. Due to the similar behaviors of Am(III) and lanthanides, it is always important to thoroughly separate americium from lanthanides to eliminate the interference of lanthanides in the measurement of Am.…”

Section: Solvent Extractionmentioning

confidence: 99%

Determination of 241Am in Environmental Samples: A Review

et al. 2022

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The determination of 241Am in the environment is of importance in monitoring its release and assessing its environmental impact and radiological risk. This paper aims to give an overview about the recent developments and the state-of-art analytical methods for 241Am determination in environmental samples. Thorough discussions are given in this paper covering a wide range of aspects, including sample pre-treatment and pre-concentration methods, chemical separation techniques, source preparation, radiometric and mass spectrometric measurement techniques, speciation analyses, and tracer applications. The paper focuses on some hyphenated separation methods based on different chromatographic resins, which have been developed to achieve high analytical efficiency and sample throughput for the determination of 241Am. The performances of different radiometric and mass spectrometric measurement techniques for 241Am are evaluated and compared. Tracer applications of 241Am in the environment, including speciation analyses of 241Am, and applications in nuclear forensics are also discussed.

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Section: Solvent Extractionmentioning

confidence: 99%

Determination of 241Am in Environmental Samples: A Review

et al. 2022

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“…For the extraction of Am(III) and Eu(III), the D values for Hhfo were higher than those for Hhmo at the same pH, because of the electron-withdrawing effect of the trifluoromethyl group, which increased the fraction of deprotonated species. 193 The non-fluorinated [N 1888 ][DODGAA] TSIL is fully miscible with paraffinic solvents and extracts Eu(III) and Am(III) as neutral metal nitrate complexes. The extraction of the metal ions decreased as the length of the paraffinic solvent increased and the two metal ions could be separated just after the addition of DTPA (between 10 À5 and 10 À3 M) to the aqueous phase.…”

Section: Chart 33mentioning

confidence: 99%

Ligands for f-element extraction used in the nuclear fuel cycle

2017

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Liquid-liquid extraction is the major technique being applied for the partitioning of f-elements from nuclear waste. In this review, the recent developments in ligand design, optimization and extraction properties are summarised for the main classes of extractants (organophosphorus ligands, diamides and N-heterocycles), with a focus on the separation of actinides and lanthanides. Structural modifications, pre-organisation and different solvent systems, as key factors for the fine-tuning of the extraction properties, are discussed. From this review, it appears that small modifications of the structure of the ligand, the pre-organising platform or the solvent can have significant impact on the extraction (and separation) of metal ions. Interest in the combinations of ligands for the extraction processes is growing, since they provide improvements over individual ligands. Similarly, unconventional approaches are being pursued to develop more efficient and greener processes.

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Synthesis and characterization of bis-succinamides for extraction of UO2 2+ from nitric acid solution

Yan

Huang

et al. 2016

J Radioanal Nucl Chem

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Solvent extraction behaviors of Americium(III) and Europium(III) using 2-hydroxy-2-methyloctanoic acid and 2-hydroxy-2-trifluoromethyloctanoic acid

Cited by 4 publications

References 11 publications

Determination of 241Am in Environmental Samples: A Review

Determination of 241Am in Environmental Samples: A Review

Ligands for f-element extraction used in the nuclear fuel cycle

Synthesis and characterization of bis-succinamides for extraction of UO2 2+ from nitric acid solution

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