Flame atomic absorption spectrometric determination of zinc, nickel, iron and lead in different matrixes after solid phase extraction on sodium dodecyl sulfate (SDS)-coated alumina as their bis (2-hydroxyacetophenone)-1, 3-propanediimine chelates

• Published in: Journal of hazardous materials Vol. 166; no. 2; pp. 1441 - 1448
• Main Authors: Ghaedi, M., Tavallali, H., Shokrollahi, A., Zahedi, M., Montazerozohori, M., Soylak, M.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 30-07-2009; Elsevier
• Subjects: Adsorption; Aluminum Oxide - chemistry; Applied sciences; Biological and medical sciences; Bis (2-hydroxyacetophenone)-1,3-propanediimine; Chelating Agents - chemistry; Chemical engineering; Exact sciences and technology; Flame atomic absorption spectrometry; Food; Food Analysis - methods; Food Contamination - analysis; Food engineering; Food industries; Fundamental and applied biological sciences. Psychology; General aspects; Heavy metal; Iron - analysis; Lead - analysis; Metals, Heavy - analysis; Nickel - analysis; Pollution; Sodium Dodecyl Sulfate - chemistry; Solid Phase Extraction - methods; Spectrophotometry, Atomic - methods; Surfactant-coated alumina; Zinc - analysis; Bis (2-hydroxyacetophenone)-1,3-propanediimine; Flame atomic absorption spectrometry; Surfactant-coated alumina; Heavy metal; Food; Solid phase extraction; Metal ion; Surfactant; Sulfates; Nitric acid; Flame spectrometry; Bis(2-hydroxyacetophenone)-1,3; Adsorption; Food industry; propanediimine; Flame; Atomic absorption spectrometry
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2008.12.066

A sensitive and simple solid phase extraction method for the simultaneous determination of trace and toxic metals in food samples has been reported. The method is based on the adsorption of zinc, nickel, iron and lead on sodium dodecyl sulfate (SDS)-coated alumina, which is also chelated with bis (2-hydroxyacetophenone)-1, 3-propanediimine (BHAPN). The retained analyte ions on modified solid phase were eluted using 8
mL of 4
mol
L
−1 HNO
3. The analyte determinations were carried out by flame atomic absorption spectrometry. The influences of some metal ions and anions on the recoveries of understudy analyte ions were investigated. The proposed method has been successfully applied for the evaluation of these trace and toxic metals in some traditional food samples from Iran.