Pyridine-functionalized Fe₃O₄ nanoparticles as a novel sorbent for the preconcentration of lead and cadmium ions in tree leaf as a bioindicator of urban traffic pollution

Omid Sayar; Hamid Reza Lotfi Zadeh Zhad; Omid Sadeghi; Vahid Amani; Ezzatolla Najafi; Najmeh Tavassoli

doi:10.1007/s12011-012-9467-9

Pyridine-functionalized Fe₃O₄ nanoparticles as a novel sorbent for the preconcentration of lead and cadmium ions in tree leaf as a bioindicator of urban traffic pollution

Biol Trace Elem Res. 2012 Dec;150(1-3):403-10. doi: 10.1007/s12011-012-9467-9. Epub 2012 Jun 17.

Authors

Omid Sayar¹, Hamid Reza Lotfi Zadeh Zhad, Omid Sadeghi, Vahid Amani, Ezzatolla Najafi, Najmeh Tavassoli

Affiliation

¹ Department of Civil and Enviromental Engineering, The University Of New South Wales, Sydney, NSW, 2052, Australia.

PMID: 22707248
DOI: 10.1007/s12011-012-9467-9

Abstract

We have developed a facile and highly sensitive sorbent for cadmium and lead ions. It is based on Fe₃O₄ nanoparticles functionalized with a derivative of picoline and was characterized by scanning electron microscopy, differential thermographic analysis, and elemental analysis. The material can be applied to the preconcentration of lead and cadmium ions. Factors such as the type, concentration and volume of eluent, the pH of the sample solution, the time for extraction, and the volume of the sample were studied. The effects of a variety of ions on preconcentration and recovery of these ions were also investigated. The ions were determined by FAAS, and the limits of detection are <0.8 and <0.061 μg L⁻¹ for lead and cadmium, respectively. Recoveries and precisions are >98.0 % and <1.3 %, respectively. The method was validated by analyzing several certified leaf reference materials.

Publication types

Validation Study

MeSH terms

Air Pollutants / analysis*
Air Pollutants / metabolism
Air Pollutants / toxicity
Analytic Sample Preparation Methods
Cadmium / analysis*
Cadmium / metabolism
Cadmium / toxicity
Cedrus / chemistry
Cedrus / drug effects
Cedrus / metabolism
Chelating Agents / chemistry
Environmental Monitoring / methods
Indicators and Reagents / chemistry
Lead / analysis*
Lead / metabolism
Lead / toxicity
Limit of Detection
Magnetite Nanoparticles / chemistry*
Magnetite Nanoparticles / ultrastructure
New South Wales
Pinus / chemistry
Pinus / drug effects
Pinus / metabolism
Plant Leaves / chemistry*
Plant Leaves / drug effects
Plant Leaves / metabolism
Pyridines / chemistry
Reproducibility of Results
Soil / chemistry
Soil Pollutants / analysis
Soil Pollutants / metabolism
Soil Pollutants / toxicity
Trees / chemistry*
Trees / drug effects
Trees / metabolism
Urban Health
Vehicle Emissions / analysis*
Vehicle Emissions / toxicity

Substances

Air Pollutants
Chelating Agents
Indicators and Reagents
Magnetite Nanoparticles
Pyridines
Soil
Soil Pollutants
Vehicle Emissions
Cadmium
Lead
pyridine