Comparative study for the separation, preconcentration, and determination of copper and cadmium in real samples by using two different ligands

Authors

HAMİDE ELVAN BAYRAK
VOLKAN NUMAN BULUT
MEHMET TÜFEKÇİ
HACER BAYRAK
CELAL DURAN
MUSTAFA SOYLAK

DOI

10.3906/kim-1505-11

Abstract

Two new solid phase extraction methods have been developed for simultaneous separation and preconcentration of Cu(II) and Cd(II) in some food and environmental samples before their determination by flame atomic absorption spectrometry (FAAS). One of these methods is based on the absorption of the Cu(II) and Cd(II) complexes with [3-(cyanomethyl)-5-(4-methylphenyl)-4$H$-1,2,4-triazol-4-yl]carbamate (L1) and the other is based on the absorption of the Cu(II) and Cd(II) complexes with 4-(4-methylphenyl)-5-{[pyridine-4-yl-4$H$-1,2,4-triazole-3-yl)thio]methyl}-4$H$-1,2,4-triazole-3-thiol (L2) on Amberlite XAD-1180 resin. The metal complexes are retained on resin at pH 6.0 and eluted with 1.0 mol L$^{-1}$ HCl in acetone in both methods. After the optimum conditions were determined, the methods were applied to seawater, stream water, rice, lentil, tea, tobacco, bulgur, chickpea, wheat, red pepper, black pepper, peppermint, and dried eggplant samples in order to determine the levels of copper and cadmium.

Keywords

Preconcentration, solid phase extraction, heavy metal, flame atomic absorption spectrometry

First Page

93

Last Page

105

Recommended Citation

BAYRAK, HAMİDE ELVAN; BULUT, VOLKAN NUMAN; TÜFEKÇİ, MEHMET; BAYRAK, HACER; DURAN, CELAL; and SOYLAK, MUSTAFA (2016) "Comparative study for the separation, preconcentration, and determination of copper and cadmium in real samples by using two different ligands," Turkish Journal of Chemistry: Vol. 40: No. 1, Article 7. https://doi.org/10.3906/kim-1505-11
Available at: https://journals.tubitak.gov.tr/chem/vol40/iss1/7