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Journal
2014 | 12 | 3 | 386-390
Article title

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

Content
Title variants
Languages of publication
EN
Abstracts
EN
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.
Publisher

Journal
Year
Volume
12
Issue
3
Pages
386-390
Physical description
Dates
published
1 - 3 - 2014
online
21 - 12 - 2013
Contributors
  • The Donetsk National University
  • National Academy of Science of Ukraine
References
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  • [5] A.S. Alemasova, N.V. Meshaninova, K.S. Lugovyy, R.Yu. Kudryavtsev, Ukrainskiy Khimicheskiy Zhurnal 75, 4 (2009) (in Russian).
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  • [17] EN 14082:2003, Foodstuffs - Determination of trace elements - Determination of lead, cadmium. Zinc, copper, iron and chromium by atomic absorption spectrometry (AAS) after dry ashing (European Union Standard)
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_s11532-013-0381-6
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