Journal
FOOD CHEMISTRY
Volume 136, Issue 2, Pages 389-391Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2012.09.016
Keywords
Cadmium; Heavy metals; Lead; Milk
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In total, 137 goat, cow, sheep, and buffalo milk samples were collected in different regions of Iran and analysed to determine concentrations of lead and cadmium by a graphite furnace atomic absorption spectrometric method. The mean recovery of the analytical method was 96.3% and 104% for cadmium and lead, respectively. The mean lead and cadmium contents obtained from 137 samples were 1.93 +/- 1.48 (range: 0.18-6.11 ng/ml) and 9.51 +/- 4.93 ng/ml (range: 1.84 ng/ml-30.50 ng/ml), respectively. Lead concentration in 8.1% of sheep and 1.9% of cow milk samples was higher than the newly established Codex standard. The mean concentrations of cadmium and lead in animals aged <= 3 years (n = 80; 1.40 +/- 1.05 ng/ml and 7.91 +/- 3.60 ng/ml, respectively) were lower than in animals aged >3 years (n = 58; 2.69 +/- 1.67 ng/ml and 11.8 +/- 5.71 ng/ml, respectively). (C) 2012 Elsevier Ltd. All rights reserved.
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