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 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.
Narin
Ibrahim
I
Erciyes University, Faculty of Pharmacy, 38039 Kayseri, Turkey.
Surme
Yavuz
Y
Soylak
Mustafa
M
Dogan
Mehmet
M
D000042:Absorption; D002138:Calibration; D002857:Chromium / Q000737:chemistry*; D004785:Environmental Pollutants / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008024:Ligands; D010084:Oxidation-Reduction; D012117:Resins, Synthetic / Q000737:chemistry*; D012997:Solvents; D013056:Spectrophotometry, Ultraviolet; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000032:analysis; D014881:Water Supply / Q000032:analysis
C515529:Ambersorb 563; D004785:Environmental Pollutants; D007202:Indicators and Reagents; D008024:Ligands; D012117:Resins, Synthetic; D012997:Solvents; D014874:Water Pollutants, Chemical; D002857:Chromium