期刊
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY
卷 7, 期 4, 页码 938-944出版社
VERSITA
DOI: 10.2478/s11532-009-0077-0
关键词
Cloud point extraction; Preconcentration; AAS; PAR; Serum
资金
- Iran National Science Foundation (INSF)
A simple, sensitive and selective flotation method is described for the preconcentration and atomic absorption spectrometric determination of zinc ion in water and blood samples. At a solution pH of 5.2, 4-(2-pyridylazo-resorcinol) and Triton X-114 were used as hydrophobic ligand and non-ionic surfactant, respectively. The chemical variables affecting the preconcentration process were optimized. Under the optimized experimental conditions, the selective preconcentration and determination of as low zinc concentration as 6.5 A mu g L(-1) can be made. The proposed method was successfully applied to the preconcentration and low-level determination of zinc in different water and blood serum samples.
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