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 |
| |
| Authors: | Omid Sayar 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
2. Department of Chemistry, Shahr-e-Rey Branch, Islamic Azad University, P.O. Box 18735-334, Tehran, Iran
|
| |
| 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???g?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. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
