Authors: A. Moghimi, R. Ghiasi, S. Behrouzinia
Affiliations: Department of Chemistry, Varamin (Pishva) Branch Islamic Azad University, Varamin, Iran, Department of Chemistry, East Tehran (Ghiam Dasht) Branch Islamic Azad University, Tehran, Iran, Laser and Optics Research School, Nuclear Science and Technology Research School, Atomic Energy Organization of Iran, Tehran, Iran
Emails: [email protected]; [email protected]
Journal: International Journal of Fundamental Physical Sciences (IJFPS)
Volume: 1, Issue: 4, Pages: 78-82, Date: December, 2011
ISSN: 2231-8186
DOI: https://doi.org/10.14331/ijfps.2011.330019
A simple, highly sensitive, accurate and selective method for determination of trace amounts of Pb(II) in water samples is presented. The method is based on selective chelation of Pb(II) on surfactant coated alumina, modified with a Schiff’s base (Z)-Furan-2-carbaldehyde Thiosemicarbazone. The retained ions were then eluted with 4 ml of 4 M nitric acid and determined by flame atomic absorption spectrometry (FAAS) at 283.3 nm. Various parameters such as flow rate, pH, foreign ion interference, and recovery efficiency were studied. The method exhibited a detection limit of 5.57 ng l⁻¹ and an enrichment factor of 100. It was successfully applied to different water samples and enabled lead speciation using a three-column system.
Determination of lead, Pre-concentration, (Z)-Furan-2-carbaldehyde Thiosemicarbazone, FAAS