Zendelovska, Dragica and Pavlovska, Gorica and Čundeva, Katarina and Stafilov, Trajche (2001) Electrothermal atomic absorption spectrometric determination of cobalt, copper, lead and nickel traces in aragonite following flotation and extraction separation. Talanta, 54 (1). pp. 139-146. ISSN https://doi.org/10.1016/S0039-9140(00)00645-7
Full text not available from this repository.Abstract
A method of determination of Co, Cu, Pb and Ni in nanogram quantities from aragonite is presented. Flotation and extraction of Co, Cu, Pb and Ni is suggested as methods for elimination matrix interferences of calcium. The method of flotation is performed by iron(III) hexamethylenedithiocarbamate, Fe(HMDTC)3, as a colloid precipitate collector. The liquid–liquid extraction of Co, Cu, Pb and Ni is carried out by sodium diethyldithiocarbamate, NaDDTC, as complexing reagent into methylisobutyl ketone, MIBK. The electrothermal atomic absorption spectrometry (ETAAS) is used for determination of analytes. The detection limits of ETAAS followed by flotation are: 7.8 ng·g−1 for Co, 17.1 ng·g−1 for Cu, 7.2 ng·g−1 for Pb and 9.0 μg·g−1 for Ni. The detection limits of ETAAS followed by extraction are found to be: 12.0 ng·g−1 for Co, 51.0 ng·g−1 for Cu, 24.0 ng·g−1 for Pb and 21.0 ng·g−1 for Ni.
| Item Type: | Article |
|---|---|
| Subjects: | Scientific Fields (Frascati) > Engineering and Technology > Chemical engineering Scientific Fields (Frascati) > Natural sciences > Chemical sciences Scientific Fields (Frascati) > Engineering and Technology > Environmental engineering Scientific Fields (Frascati) > Engineering and Technology > Other engineering and technologies |
| Divisions: | Faculty of Technology and Technical Sciences |
| Depositing User: | Prof. d-r. Gorica Pavlovska |
| Date Deposited: | 03 Apr 2023 12:34 |
| Last Modified: | 03 Apr 2023 12:34 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/7926 |
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