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Determination of CD, CU, and PB in animal tissues—comparison of electrochemical results obtained with a new polarographic system and atomic spectroscopy
Author(s) -
Šestáková Ivana,
Miholová Daniela,
Slámová Alžběta,
Mader Pavel,
Száková Jiřina
Publication year - 1994
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140061124
Subject(s) - ashing , atomic absorption spectroscopy , polarography , certified reference materials , chemistry , analytical chemistry (journal) , voltammetry , relative standard deviation , electrochemistry , environmental chemistry , electrode , chromatography , inorganic chemistry , detection limit , physics , quantum mechanics
Reference materials of animal origin have been analyzed for Cd, Cu, and Pb contents by voltammetry using ECO‐TRIBO Polarograph with pentype renewed Hg electrode after dry ashing in superoxidizing atmosphere (mixture of O 3 + O 2 + NO x ). The contents of all metals mentioned were independently determined in aliquots of identical digests by atomic absorption spectrometry (AAS). Statistical evaluation showed good correlation between both methods. Moreover, dectrochemical results the obtained for biological certified reference material (CRM) 12‐02‐01 Bovine Liver are in very good agreement with certified values for Cd and Pb.