Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 20, Issue 6, Pages 3989-3993Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2013.12.101
Keywords
Solid-phase extraction; Activated carbon; Heavy metals; Flame atomic absorption spectrometry
Funding
- King Saud University, Deanship of Scientific Research, College of Science Research Center
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This work aimed to develop a solid-phase extraction method using low-cost activated carbon produced from waste and modified with 4-(2-thiazolylazo) resorcinol for Cd(II), Pb(II), and Cu(II). The results showed that quantitative recovery of analytes was obtained at pH 6 with 3 M nitric acid as the eluent and a sample volume up to 1000 mL. The method was validated using certified reference material and addition-recovery tests. The limits of detection (LODs) for Pb(II), Cd(II), and Cu(II) were 2.03 mu g L-1, 0.15 mu g L-1, and 0.19 mu g L-1, respectively. The procedure was applied for determination of analytes in food samples. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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