Voltammetric determination of Pb, Cd, Zn, Cu and Se in milk and dairy products collected from Iran: An emphasis on permissible limits and risk assessment of exposure to heavy metals

卷:192

Shahbazi, Yasser ; Ahmadi, Farhad ; Fakhari, Farnoosh

Kermanshah Univ Med Sci

关键词: Heavy metals;    Anodic-cathodic stripping voltammetry;    Milk;    Dairy products;    Public health;    Risk assessment;   

DOI  :  10.1016/j.foodchem.2015.07.123

学科分类：食品科学和技术

【 摘 要 】

This study was carried out to determine the concentrations of some heavy metals in dairy products, collected from five industrial regions in Iran (n = 250 samples) during winter and summer in 2013. The samples were analyzed using the differential pulse anodic and cathodic stripping voltammetry technique. The obtained ranges of mean Pb, Cd, Cu, Zn and Se were as follow: in raw milk 14.0, 1.11, 427, 571, 2.19 mu g kg(-1), in pasteurized milk 9.59, 1.0, 378, 447, 1.78 mu g kg(-1), in cheese 14.5, 1.25, 428, 586, 1.68 mu g kg(-1), in yoghurt 7.54, 0.99, 399, 431, 1.23 mu g kg(-1) and in doogh 7.2, 0.84, 320, 369, 0.99 mu g kg(-1), respectively. In nearly all cases the concentrations of the metals were below the international permissible limits and do not pose a health concern for the consumption of milk and dairy products in Iran. (C) 2015 Elsevier Ltd. All rights reserved.