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- Title
Preconcentration of some heavy metals by Amberlite XAD-4 functionalized with Phenanthroline and investigation of microwave radiation effect on kinetic of adsorption.
- Authors
Hashemi-Moghaddam, Hamid; Haghiri, Hajar Khaton
- Abstract
Phenanthroline modified Amberlite XAD-4 has been synthesized by coupling it through an azo spacer. The resulting chelating resin, characterized by elemental analysis, thermogravimetric analysis and infrared spectra, was used to preconcentrate Cd, Pb, Fe, Co, Cu and Zn ions. Parameters, such as sorption capacity of the chelating resin, pH and eluent, were evaluated. The effects of electrolytes and cations on the preconcentration were also investigated. Furthermore, effect of microwave power was investigated on adsorption rate of these heavy metals. The obtained results show, time of extraction is reduced significantly by this modification. The detection limit, were found to be 1.4, 4.1, 2.4, 3.9, 3.1, 3.9 μg L−1for Cd, Pb, Fe, Co, Cu and Zn, respectively. The relative standard deviation of the ten replicate determinations was <7%. The procedure was validated by standard addition and comparison of obtained result by GFAAS method. The developed method was utilized for preconcentration of Cd, Pb, Fe, Co, Cu and Zn in wastewater, potato and preconcentration of Pb in lipstick with satisfactory results.
- Subjects
PHENANTHROLINE; METAL compounds; INORGANIC chemistry; ADSORPTION kinetics; RADIOACTIVE substances
- Publication
Desalination & Water Treatment, 2016, Vol 57, Issue 4, p1705
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.976766