ORIGINAL RESEARCH
Determination of Heavy Metal Contents in Samples of Medicinal Herbs
I. Baranowska, K. Srogi, *A. Włochowicz, *K. Szczepanik
 
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Department of Analytical and General Chemistry, Silesian Technical University;
Strzody 7, 44-100 Gliwice, Poland
* University of Bielsko-Biała;
Plac Fabryczny, 43-300 Bielsko-Biała, Poland
 
Pol. J. Environ. Stud. 2002;11(5):467–471
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ABSTRACT
The heavy metals Cd, Pb, Zn, Ni and Mo were determined in 27 samples of medicinal herbs taken from various places in Bielsko Biała and the neighbouring area. Samples were digested by the wet method in a microwave oven. Flame AAS and differential pulse polarography (anodic and stripping voltammetry) were used for determination of these metals. Oriental tobacco (CTA-ATL-1) as the certified reference material was applied for calibration and validation of analytical procedures.
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