Extraction-Atomic-Absorption Determination of Gallium (III) with 2-hydroxy-5-T-butylphenol-4’-methoxy-azobenzene

Pashajanov, A.M.; Bayramov, Shahin M.; Abbasova, Gulu G.; Agamaliyeva, Melek M.; Mamedova, Zumrud A.

doi:10.4236/msce.2020.89003

Cited by 1 publication

(2 citation statements)

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“…However, atomic methods have undoubtedly been the most widely used for the determination of Ga(III). In the case of atomic absorption, flame atomization (FAAS) [ 27 , 28 ] and electrothermal [ 29 , 30 , 31 ] techniques (ETAAS) have been proposed, although the narrow linearity range characteristic of this technique has led many authors to use atomic emission spectrometry with optical detection (ICP-OES) [ 32 , 33 , 34 , 35 ] or mass spectrometry (ICP-MS) [ 36 , 37 ] for the purpose. These latter techniques are expensive, mainly due to the high argon consumption.…”

Section: Introductionmentioning

confidence: 99%

“…Most of the recently proposed methods using atomic detection techniques couple preconcentration processes in different media. For example, supercritical fluid extraction [ 31 ], silica nanoparticles packed in a microcolumn [ 43 ], solid-phase extraction with a cation exchanger [ 34 ], non-ionic [ 25 , 44 ] or chelating [ 45 ], modified resins [ 46 ], halloysite nanotubes [ 30 ], silica gel modified with gallic acid [ 47 ] or simply extraction with organic solvents [ 28 ], at cloud point [ 27 ] and in ionic liquids [ 48 ].…”

Section: Introductionmentioning

confidence: 99%

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Using a Simple Magnetic Adsorbent for the Preconcentration and Determination of Ga(III) and In(III) by Electrothermal Atomic Absorption Spectrometry

et al. 2023

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A solid-phase dispersive microextraction procedure has been developed using ferrite (Fe3O4), an inexpensive magnetic material, as an adsorbent for the separation and subsequent determination of Ga(III) and In(III). The ions were removed from an aqueous solution by adsorption on Fe3O4, which was next easily collected from the medium by the action of a magnet. The analytes were then desorbed using 50 µL of 2 M NaOH or 50 µL of a 4:1 mixture of 0.1 M EDTA and 2 M HNO3 for the determination of Ga(III) or In(III), respectively. The level of the elements in the desorption phase was measured by electrothermal atomic absorption spectrometry (ETAAS) by injecting 10 µL of this phase into the atomizer. The enrichment factor was 163, and detection limits of 0.02 and 0.01 µg L−1 were achieved for Ga(III) and In(III), respectively. The reliability of the procedure has been verified by means of standard reference materials and by means of standard additions. Results are given for waters, soils and samples obtained from various electronic devices. It is of note that the procedure could be the basis for a useful way of recovering these valuable elements from different matrices for reuse.

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