توضیحات :
Journal of Advances in Environmental Health Research
Volume 5, Issue 4, Autumn 2017
Authors : Fariborz Nasri , Nader Amini, Parham Mohammadi
Abstract :
Seven majorly consumed brands of several teas (A1, A2, M1, M2, S, D, and C teas) were selected for the present study. In this study, the heavy metal contents including copper (Cu), cadmium (Cd), arsenic (As), and lead (Pb) were assessed in the black tea samples consumed in Iran. The content of the heavy metals in the samples was analyzed using atomic absorption spectroscopy (AAS). Notably, the minimal amount of As (0.043 ± ۰.۰۰۶ ppm), Pb (0.040 ± ۰.۰۰۵ ppm), Cd (0.016 ± ۰.۰۰۱ ppm), and Cu (5.36 ± ۰.۴۹ ppm) concentrations were found in the M1, S, M2, and M2 teas, respectively; whereas, the maximal amount of As (0.287 ± ۰.۰۰۷ ppm), Pb (0.228 ± ۰.۰۰۲ ppm), Cd (0.101 ± ۰.۰۴۰ ppm), and Cu (37.4 ± ۰.۵۳ ppm) concentrations were found in the D, A1, M1, and D teas, respectively. Considering the present safety standards, the tea versions selected in this study were determined to be fit and safe for human consumption.
Keyword : Black tea, Heavy metals, Atomic absorption spectroscopy
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