Abstract
The rapid stripping chronopotentiometry (SCP) method was used to determine copper, lead, cadmium, and zinc in different kinds of vinegars (date, white grape, red grape, and apple) produced in Iran. The results of SCP were compared with graphite furnace atomic absorption spectrometry (GFAAS) as a reference method. There were no significant differences (p > 0.5) between the two methods. The range of concentration (ng/ml) of the analytes for heavy metals in different kinds of vinegars was as follows: copper (12.79–1,129), lead (3.32–253), cadmium (non-detectable concentration to 78), and zinc (26.12–3,725). The results demonstrated that it is possible to accurately determine the copper, lead, cadmium, and zinc content by direct analysis of vinegar samples using SCP method. The metal concentrations in all samples were lower than the maximum allowable limits legislated by the Institute of Standards and Industrial Research of Iran.
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The authors are grateful to the Shahrekord University for supporting this research.
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Saei-Dehkordi, S.S., Fallah, A.A. & Ghafari, E. Determination of Lead, Cadmium, Copper, and Zinc Content in Commercial Iranian Vinegars Using Stripping Chronopotentiometry. Food Anal. Methods 5, 767–773 (2012). https://doi.org/10.1007/s12161-011-9303-4
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DOI: https://doi.org/10.1007/s12161-011-9303-4