The selective separation of thorium from uranyl ions using ultrasonic-assisted solidified floating organic drop microextraction

El-Gamal, Ghada G.; Mortada, Wael I.; Hassanien, Mohamed M.; Ibrahim, Ahmad; El-Reash, Y.G. Abou

doi:10.1039/d1ja00098e

Cited by 22 publications

(6 citation statements)

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“…El‐Gamal et al. proposed an SFODME method for separating Th 4+ from UO 2 2+ [28], and Jain et al. showed that maximum extraction of acetaminophen was obtained when the pH of the sample was kept at 7 (i.e., neutral) [29].…”

Section: Factors Affecting the Performance Of Sfodmementioning

confidence: 99%

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Recent overview of microextraction of metal ions and pharmaceuticals by solidified floating organic drop microextraction techniques

Kumar,

Satapathy,

Kurmi

et al. 2024

Separation Science Plus

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This work presents a comprehensive overview of solidified floating organic drop microextraction, with a particular emphasis on its applications in the analysis of heavy metal ions and different pharmaceutical compounds by sample pretreatment, complexation, and their identification by various analytical techniques. Here, we discussed basic principles, procedures, applications of the technique, and effects of different variables like pH, temperature, stirring rate, extraction time, salts addition, extraction solvent and extraction volume, centrifugation speed, and, vortex time on preconcentration. In brief, the review summarises the various modes of solidified floating organic drop microextraction such as dispersive liquid‐liquid microextraction, ultrasound‐assisted, air‐assisted liquid‐liquid microextraction, and vortex‐assisted solidified floating organic drop microextraction. this review covers the methods combined with analytical techniques such as inductively coupled plasma‐optical emission spectrometry, electrothermal atomic absorption spectrometry, flame atomic absorption spectroscopy, graphite furnace atomic absorption spectrometry, electrothermal vaporization inductively coupled plasma mass spectrometry, high‐performance liquid chromatography, and gas chromatography/mass spectrometry. among these, the incorporation of ultrasonic, vortex, and air agitation improves the dispersion mechanism. The coupling of solidified floating organic drop microextraction with other techniques enhances the selectivity and efficiency of the preconcentration procedure. This review provides a potential overview of the fundamental principles, advancements in various modes, influencing factors, and applications of solidified floating organic drop microextraction, showing its potential for advancements in sample preparation and analytical methodologies across various domains.

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Section: Factors Affecting the Performance Of Sfodmementioning

confidence: 99%

“…evaluate the presence of Mn(II) and Mn(VII) in beverage samples by using dispersive micro‐solid phase extraction coupled with solidified floating organic drop microextraction and followed by GFAAS. They found that pH 4.0 is an appropriate value for separation [28]. Liang et al.…”

Section: Factors Affecting the Performance Of Sfodmementioning

confidence: 99%

Recent overview of microextraction of metal ions and pharmaceuticals by solidified floating organic drop microextraction techniques

Kumar,

Satapathy,

Kurmi

et al. 2024

Separation Science Plus

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“…Uranium and thorium, as extremely common radioactive elements, have received considerable attention 1 . In nature, uranium mainly exists in the form of uranyl ions, and thorium exists in the form of thorium ions 2 . Because of the similarities between the outer electronic structures of the two elements, the structures and configurations of the formed composites will also be very similar 3–5 .…”

Section: Introductionmentioning

confidence: 99%

“…1 In nature, uranium mainly exists in the form of uranyl ions, and thorium exists in the form of thorium ions. 2 Because of the similarities between the outer electronic structures of the two elements, the structures and configurations of the formed composites will also be very similar. [3][4][5] As reported by Venkatesh et al and Ang et al, it is not easy to separate these compounds in an environment where uranyl ions and thorium coexist.…”

Section: Introductionmentioning

confidence: 99%

Coordination binding of hydroxycalix[4]arene, hydroxycalix[5]arene, and hydroxycalix[6]arene to uranyl and thorium ions

Lan¹,

Wang²,

Liu³

et al. 2023

Applied Organom Chemis

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In this study, hydroxycalix[4]arene, hydroxycalix[5]arene, hydroxycalix[6]arene, and their complexes with uranyl and thorium ions were analyzed by density functional theory. The coordination ability of hydroxycalixarene ligands to uranyl and thorium ions could be analyzed by simulating the infrared and ultraviolet–visible spectra, the Wiberg bond energy levels, the energy gaps, and the binding energies. We found that various hydroxycalixarene complexes with uranyl or thorium ions had significant differences in their properties, as well as in their infrared vibrational and ultraviolet absorption spectra. More importantly, different hydroxycalixarenes can be selected based on the adsorption requirements in environments with coexisting uranium and thorium ions. For example, hydroxycalix[4]arene and hydroxycalix[5]arene had a significantly higher binding capacities for thorium than uranyl ions, while hydroxycalix[6]arene showed less of a difference for the two ions but had a good binding ability for both uranyl and thorium ions at the same time. Thus, the use of hydroxycalixarene can achieve the removal of both uranyl and thorium ions in the environment, and the use of specific hydroxycalixarenes may be able to achieve the separation of these ions. These results provide important guidance for the future research of hydroxycalixarene without requiring the synthesis of hydrophilic derivatives, and they may be directly applied to the field of heavy metals.

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“…Among them microextraction procedures have performed well to improve separation, achieve high efficiency, and reduce environmental hazard effects caused by the use of toxic organic solvents [8,9]. Examples of eco-friendly extraction procedures are cloud point extraction (CPE) [10][11][12][13], dispersive liquid-liquid microextraction (DLLME) [14] and solidification of floated organic drop [15].…”

Section: Introductionmentioning

confidence: 99%

Air-assisted cloud point extraction coupled with inductively coupled plasma optical emission spectroscopy for determination of samarium in environmental samples

et al. 2022

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For the first time, air-assisted cloud point extraction (AACPE) was presented to preconcentrate metal ions. The procedure was conjugated with inductively coupled plasma-optical emission spectroscopy for determination of samarium. In this procedure, samarium ions were complexed with aluminon and extracted into Triton X-114 in the presence of potassium iodide. The mixture was repeatedly sucked and dispersed with a syringe (three times) to create cloud solution. Experimental factors that affect the extraction competence of the AACPE procedure, such as pH, amount of aluminon and Triton X-114, salt addition, number of suction/injection cycles, and centrifugation rate and time, have been investigated and optimized. A linear calibration curve from 0.2 to 200.0 μg L−1 with enrichment factor and detection limit of 102 and 0.06 μg L−1, respectively, was established under the optimum experimental conditions. The approach was used to determine samarium in wastewater and rock samples, with recoveries ranging from 98% to 99%. Graphical abstract

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The selective separation of thorium from uranyl ions using ultrasonic-assisted solidified floating organic drop microextraction

Abstract: The accurate determination of thorium (Th4+) in the existence of uranyl ion (UO22+) is a challenge facing analytical chemists. In this article, a solidified floating organic drop microextraction procedure (SFODME)...

Cited by 22 publications

References 50 publications

Recent overview of microextraction of metal ions and pharmaceuticals by solidified floating organic drop microextraction techniques

Recent overview of microextraction of metal ions and pharmaceuticals by solidified floating organic drop microextraction techniques

Coordination binding of hydroxycalix[4]arene, hydroxycalix[5]arene, and hydroxycalix[6]arene to uranyl and thorium ions

Air-assisted cloud point extraction coupled with inductively coupled plasma optical emission spectroscopy for determination of samarium in environmental samples

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