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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access December 21, 2013

Lead and cadmium atomic absorption determination in solid carbonized food samples using flame-furnace atomizer

  • Kostyantyn Lugovyy EMAIL logo , Olexander Buhay and Antonina Alemasova
From the journal Open Chemistry


Direct atomic absorption solid sampling analysis using flame-furnace atomizer enables a significant decrease in the analysis duration, to avoid sample pollution and to exclude toxic reagents. The selection of the chemical modifiers decreasing the detection limit and improving the results repeatability is based on the analyte’s free atoms formation mechanism. The developed kinetic approach has allowed to determine pre-exponential factors k0 and apparent activation energies Ea of atomization processes for Pb(II) and Cd(II) compounds and to propose effective chemical modifiers sodium N,N-diethyldithiocarbamate and urea for food samples. The express and precision technique for lead and cadmium determination in food, using proposed chemical modifiers and carbonization techniques was developed.

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Published Online: 2013-12-21
Published in Print: 2014-3-1

© 2014 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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