Separation and Enrichment of Gallium(III) as 4-(2-Thiazolylazo) Resorcinol (TAR) Complex by Solid Phase Extraction on Amberlite XAD-4 Adsorption Resin

Abstract

A rapid, sensitive, and facile method for enrichment and separation of trace amounts of gallium was established by using mini column filled Amberlite XAD-4. Gallium(III) as a 4-(2-thiazolylazo) resorcinol (TAR) complex is sorbed on the Amberlite XAD-4 resin and is easily eluted by using 1 M nitric acid in acetone. The determinations of gallium were performed by atomic absorption spectrometry. The influences of the analytical parameters including amounts of reagents, pH of the solutions, and type of eluent were also investigated. The influences of several ions, as interferents, were discussed. The accuracy of the method was demonstrated by recovery on spiked samples. The presented procedure was applied to the determination of gallium in reference standard sediment material (GBW 07309) and water samples with satisfactory results (recovery 95%; relative error 3%; relative standard deviation 10%).

Removal of gallium (III) ions from acidic aqueous solution by supercritical carbon dioxide extraction in the green separation process

“…As a result of these favorable properties of supercritical CO 2 as a solvent, an in situ chelation-supercritical CO 2 extraction technique with proper chelating agents has a wide range of applications, including the treatment of metal contaminated waste materials and mineral processing. Most papers related to the separation and enrichment of metal ions used coprecipitation [20], solvent extraction [21][22], electroanalytical techniques [23], concentrated strong acid extraction [24][25], or solid phase extraction [26][27][28][29][30]. However, there is little research on the application of the supercritical CO 2 extraction of metal ions outside of our earlier study [31].…”

Sorbent extraction of 4-(2-thiazolylazo) resorcinol (TAR)–metal chelates on Diaion SP-850 adsorption resin in order to preconcentration/separation

“…Its metal chelates have been also used for the preconcentration of metal ions by solid phase extraction [46][47][48]. According to our literature survey, 4-(2-thiazolylazo) resorcinol (TAR)-metal chelates-Diaion SP-850 combination is not used for the preconcentration-separation of traces metal ions in the food and environmental samples.…”

Combination of Syringe–Solid Phase Extraction with Inductively Coupled Plasma Mass Spectrometry for Efficient Heavy Metals Detection

“…Sample preparation procedures, including extraction methods, not only enrich and preconcentrate the desired heavy metal but also reduce the matrix effect, which may interfere with the analysis . Therefore, considerable efforts have been made to develop new extraction methods for the separation and enrichment of heavy metals from environmental samples . Many methods are available for the preconcentration of heavy metals, such as liquid–liquid extraction , solid phase extraction (SPE) , cloud point extraction , and dispersive liquid–liquid microextraction .…”