A micro mixed micelle-mediated preconcentration procedure for spectrophotometric determination of uranium in real and synthetic samples

Mortada, Wael I.; Kenawy, Ibrahim M.; El-Gamal, Ghada G.; Moalla, S. M. N.

doi:10.1007/s10967-017-5281-3

Cited by 18 publications

(5 citation statements)

References 38 publications

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“…It is available in a pure form with a high density, making it easier to create rich-phase samples. The temperature range of clouds is relatively broad [9,12]. The effect of Triton X-100 (1.0% v/v) volume on Fe(III) preconcentration by the current approach was investigated from 0.1 to 1.5 mL.…”

Section: The Impact Of Surfactant Volumementioning

confidence: 99%

“…Both have various limitations such as lengthened extraction times, the use of relatively large amounts of hazardous solvent, and the appearance of a potential cause of error caused by multiple stages [8,9]. Cloud point extraction (CPE) is a modified LLE approach that uses micelles as an extraction solvent instead of hazardous organic solvents [10][11][12][13]. Among the preconcentration procedures, CPE represents a simple and environmentally friendly procedure for separation of inorganic and organic species in different samples [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Displacement cloud point extraction procedure for preconcentration of iron(III) in water and fruit samples prior to spectrophotometric determination

Azooz¹,

Shabaa²,

Al-Muhanna³

et al. 2022

Bull. Chem. Soc. Eth.

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ABSTRACT. For the enrichment of iron(III) prior to spectrophotometric determination, displacement cloud point extraction (D-CPE) technique was applied depending on the difference in stability constant of metal complexes. Zinc(II) as gallic acid complex was first separated into a Triton X-100 surfactant. Then, once the aqueous phase has been removed, the sample containing Fe(III) is added, and another CPE process is performed. Because Fe-GA has a higher stability than Zn-GA, Fe(III) can displace Zn(II) from the pre-extracted Zn-GA, allowing for Fe(III) separation from the complex sample matrix and its spontaneous spectrophotometric determination at 560 nm. The effects of pH, ligand, and surfactant quantities, temperature and heating time, centrifuge processes, and interferences were all studied. At the optimal conditions, the calibration graph was linear from 0.5 to 500 µg L-1 with enrichment factor of 75.0. The LOD was 0.15 µg L-1 and the RSD was 1.3% for 60 µg L-1 of Fe(III), n = 10. Accuracy was also evaluated using the standard reference substance (SRS) and flame atomic absorption spectroscopy (FAAS) approaches. This procedure was used for separation and micro-determination of Fe(III) in water and fruit tests (banana, strawberry, lemon, orange, and peaches) with recoveries ranged from 96.5 to 105%. KEY WORDS: Displacement cloud point extraction, Iron, Spectrophotometry, Fruit samples Bull. Chem. Soc. Ethiop. 2023, 37(1), 1-10. DOI: https://dx.doi.org/10.4314/bcse.v37i1.1

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Section: The Impact Of Surfactant Volumementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Displacement cloud point extraction procedure for preconcentration of iron(III) in water and fruit samples prior to spectrophotometric determination

Azooz¹,

Shabaa²,

Al-Muhanna³

et al. 2022

Bull. Chem. Soc. Eth.

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“…The polyoxyethylene-7.5-octyl phenoxy ether (Triton X-114) and polyoxyethylene-9.5-octyl phenoxy ether (Triton X-100) are used widely in MSE. Also, non-ionic surfactants are used alone or mixed with ionic surfactants in MSE [43]. Because of their lipophilic composition, they are very stable and are unaffected by the presence of salts, bases, acids, or dissolving agents for both organic and aqueous solutions [9][10][11].…”

Section: Surfactantsmentioning

confidence: 99%

The Fundamentals and Recent Applications of Micellar System Extraction for Nanoparticles and Bioactive Molecules: A Review

Azooz¹,

Ridha²,

Abdulridha³

2021

Nano BioMed ENG

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The basics and uses of the micellar system extraction technique (MSE) for extracting and preconcentrating nanoparticles and bioactive compounds (medicines and vitamins) are covered in this review. Hence, the influential factors of the MSE and applications are offered. The MSE, like any separation process, extracts the analytes in a small phase from the solution to improve analysis quality and remove sample background interference. The MSE has several advantages over other preconcentration and separation methods, such as speed, cheapness, security, selectivity, and safety. The use of toxic organic solvents is reduced or ignored, and the process is economical and environmentally friendly. In the latest works of literature, three different procedures use to extract nanomaterials. So bioactive molecules were separated by two methods with MSE, and this review also provided newly-developed MSE.

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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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A micro mixed micelle-mediated preconcentration procedure for spectrophotometric determination of uranium in real and synthetic samples

Cited by 18 publications

References 38 publications

Displacement cloud point extraction procedure for preconcentration of iron(III) in water and fruit samples prior to spectrophotometric determination

Displacement cloud point extraction procedure for preconcentration of iron(III) in water and fruit samples prior to spectrophotometric determination

The Fundamentals and Recent Applications of Micellar System Extraction for Nanoparticles and Bioactive Molecules: A Review

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

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