Speciation of Cr(III) and Cr(VI) in environmental samples by solid phase extraction on Ambersorb 563 resin

A simple and sensitive method for the speciation, separation and preconcentration of Cr(VI) and Cr(III) in natural water, soil and sediment samples was developed. Cr(VI) has been separated from Cr(III) and preconcentrated as Cr(III)–diphenylcarbazone complex by using Ambersorb 563 resin and determin...

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Veröffentlicht in:	Journal of hazardous materials 2006-08, Vol.136 (3), p.579-584
Hauptverfasser:	Narin, Ibrahim, Surme, Yavuz, Soylak, Mustafa, Dogan, Mehmet
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Ambersorb 563 Applied sciences Calibration Chromium Chromium - chemistry Environmental Pollutants - chemistry Exact sciences and technology Hydrogen-Ion Concentration Indicators and Reagents Ligands Oxidation-Reduction Pollution Resins, Synthetic - chemistry Solid phase extraction Solvents Speciation Spectrophotometric determination Spectrophotometry, Ultraviolet Waste Disposal, Fluid Water Pollutants, Chemical - analysis Water Supply - analysis
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Beschreibung
Zusammenfassung:	A simple and sensitive method for the speciation, separation and preconcentration of Cr(VI) and Cr(III) in natural water, soil and sediment samples was developed. Cr(VI) has been separated from Cr(III) and preconcentrated as Cr(III)–diphenylcarbazone complex by using Ambersorb 563 resin and determined by spectrophotometric method at 540 nm. Effect of analytical parameters such as sulfuric acid concentration, ligand volume, type of elution solution, sample volume, amount of resin and foreign ions were investigated. The presented procedure was successfully applied for the chromium speciation in various environmental samples with successfully results.
ISSN:	0304-3894 1873-3336
DOI:	10.1016/j.jhazmat.2005.12.034