DETERMINATION OF ZINC, CADMIUM, LEAD AND COPPER IN SAMPLES OF COFFEE
Journal Title: Вісник Одеського національного університету. Хімія - Year 2015, Vol 20, Issue 4
Abstract
The potential pollutants which can get to the body using food products were explored in this work. The content of heavy metals such as zinc, cadmium, lead and copper are determined in coffee by inversion voltammetry. Sample preparation of samples was performed by oxidizing mineralization of paint sample in nitrate acid. It is shown that the method of inversion voltammetry can be successfully applied for the determination of zinc, cadmium, lead and copper at their combined presence in coffee. It is established that lead and zinc contain in all investigated samples, most of them contain cadmium and copper. Based on the analysis of experimental data discovered that the content of lead and cadmium don’t exceed permissible limits. It is noted that the average number of heavy metals increases in the order: coffee drinks- a soluble coffee – coffee beans and Grinded – green coffee. However, for an objective assessment of hair dyes quality, it is recommended to use a separate identification on each of heavy metals.
Authors and Affiliations
E. Yu. Kupchik
Keywords
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- EP ID EP411634
- DOI 10.18524/2304-0947.2015.4(56).56696
- Views 73
- Downloads 0
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