Cloud point extraction of some precious metals using Triton X-114 and a thioamide derivative with a salting-out effect

Mortada, Wael I.; Hassanien, Mohamed M.; El‐Asmy, Ahmed A.

doi:10.1016/j.ejbas.2014.07.001

Cited by 41 publications

(26 citation statements)

References 35 publications

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“…The low concentration of surfactant is expected as inadequate to entrap the phenol in surfactant-rich phase, leading to low recovery of phenol extraction in the CPE method. According to Mortada et al [16], the extraction recovery of the complexes is low when it is at lower concentration, due to the inadequacy of the assembly to entrap the complex.…”

Section: Effect Of Surfactant Concentration On the Extraction Recovermentioning

confidence: 98%

Determination of phenol in water samples using cloud point extraction and UV spectrophotometry

Noorashikin

Nadiah

Nurain

et al. 2016

Desalination and Water Treatment

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Section: Effect Of Surfactant Concentration On the Extraction Recovermentioning

confidence: 98%

Determination of phenol in water samples using cloud point extraction and UV spectrophotometry

Noorashikin

Nadiah

Nurain

et al. 2016

Desalination and Water Treatment

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“…The trace and ultra-trace determination of silver is usually carried out after preconcentration by solid phase extraction [7,8], ligand cloud point extraction [9], ligandless cloud point extraction [10], cloud point extraction-flame atomic absorption [11], ligand modified magnetic nanocomposite [12], simple solvent bar micro-extraction [13], three-phase solvent bar micro-extraction [14], and determination by flame or furnace atomic absorption spectrometry [15,16]. The rapid methods involving bulk optode based on an ionophore [17], high sensitive and selective optical sensor [18], optical recognition [19] have used too.…”

Section: Introductionmentioning

confidence: 99%

Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples

et al. 2019

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A new ligand, 1,5-bis(para methoxyphenyl)-3-ethyl-1,4-pantaazadiene has been synthesized by reaction of the 4-methoxyaniline (panisidine) with ethylamine. The mixture was stirred in an ice bath for 30 min. The structure of the synthesized compound resulted from the IR and 1 HNMR and 13 CNMR. Afterwards, a carbon paste electrode modified with this new ligand was developed for the silver determination at nano molar level concentration. The electerochemical properties of this modified electrode was investigated by employing cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods in an acetate buffer solution (pH=4.8). The effect of pH, scan rate, percentage of modifier and buffer as supporting electrolyte on the electrode process were investigated. The oxidation peak of Ag + was observed at about 0.4-0.5 V. The resulting electrode demonstrated linear response across a 10-9 to 10-8 mol/L-1 of silver concentration range with a detection limit value of 1.61×10-10 mol/L-1 , on the basis of a signal to noise ratio of 3. Relative Standard deviation (RSD%) of the electrode performance was 2.41%. This MCPE, showed high sensitivity and selectivity to Ag + ions in aqueous samples.

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“…In this method, magnetic micro/nano particles are prepared by thermal decomposition of precursors such as metal compounds (Fe(acac) 3 , Fe(CO) 5 , Co 2 (CO) 8 and Fe(Cup) 3 (acac and Cup are acetyl acetone and cup ferrate respectively )) at elevated temperature and pressure. The particles are then oxidized to magnetic metal oxide nanoparticles.…”

Section: Preparation Of Magnetic Adsorbentsmentioning

confidence: 99%

Magnetic Adsorbents for the Recovery of Precious Metals from Leach Solutions and Wastewater

Aghaei

Alorro

Encila

et al. 2017

Metals

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Precious metals which include the platinum group, gold, and silver, play indispensable roles in high technology industries of the modern world due to their outstanding physical and chemical properties. As a result of diminishing availability of mineral sources, increasing demand, and environmental concerns, the recovery of precious metals from both leaching and industrial waste solutions is becoming a very important technology. Magnetic solid phase extraction (MSPE) is a technique that has received substantial consideration in the separation and recovery of precious metals because of the many advantages it offers compared to conventional methods. This technique is based on the extraction of different analytes from solutions using solid adsorbents with magnetic properties. This review focuses on different types of magnetic adsorbents, the main procedures used for synthesis, characterization and their application in precious metals recovery based on recently published literatures.

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Cloud point extraction of some precious metals using Triton X-114 and a thioamide derivative with a salting-out effect

Cited by 41 publications

References 35 publications

Determination of phenol in water samples using cloud point extraction and UV spectrophotometry

Determination of phenol in water samples using cloud point extraction and UV spectrophotometry

Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples

Magnetic Adsorbents for the Recovery of Precious Metals from Leach Solutions and Wastewater

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