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Determination of Cu, Fe, Pb and Zn by Flame‐AAS after Preconcentration Using Sodium Dodecyl Sulfate Coated Alumina Modified with Complexing Agent
Author(s) -
Ghaedi Mehrorang,
Niknam Khodabakhsh,
Shokrollahi Ardeshir,
Niknam Ebrahim
Publication year - 2009
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200900021
Subject(s) - chemistry , nitric acid , sodium dodecyl sulfate , adsorption , metal ions in aqueous solution , detection limit , chromatography , sulfate , matrix (chemical analysis) , metal , sodium , trace amounts , elution , nuclear chemistry , analyte , inorganic chemistry , organic chemistry , medicine , alternative medicine , pathology
A sensitive and simple method for the simultaneous preconcentration of trace transition and heavy metal ions is reported. The method is based on the adsorption of Cu, Fe, Pb and Zn on N,N′‐Diacetyl‐4‐bromo‐2,6‐di(aminomethyl)anisole (DABDAMA) loaded on sodium dodecyl sulfate (SDS) coated alumina. The metal content on the complexes are eluted using 6 mL of 2 mol l −1 nitric acid. The influences of the analytical parameters including pH and sample volume were investigated. The effects of matrix ions on the retentions of the analytes were also examined. The recoveries of analytes were generally higher than 95% with a low RSD. The method has been successfully applied for these metals content evaluation in samples including soil, blood and vegetable samples.