期刊
ENVIRONMENTAL ENGINEERING AND MANAGEMENT JOURNAL
卷 14, 期 11, 页码 2523-2528出版社
GH ASACHI TECHNICAL UNIV IASI
DOI: 10.30638/eemj.2015.269
关键词
Carpathians; essential trace elements; milk; toxic elements
资金
- Executive Unit for Financing Higher Education, Research, Development and Innovation (UEFISCDI), Capacities, Bilateral cooperation Programme Romania-Austria [757/2014]
The aim of this study was to determine the content of the main essential trace (Co, Cr, Cu, Mn, Se and Zn) and toxic (As, Cd, Hg and Pb) elements in milk by inductively coupled plasma-mass spectrometry (ICP-MS) and cold vapor atomic fluorescence spectrometer (CV-AFS) following priory microwave-assisted digestion with HNO3-H2O2. The milk samples were collected from local small-scale producers of different parts of Rodnei Mountains, Eastern Carpathians, Romania. Mean concentrations in mu g/L ww were 1.02 (As), 1.09 (Cd), 1.06 (Hg), 6.57 (Pb), 3.54 (Co), 4.56 (Cr), 47.5 (Cu), 23.4 (Mn), 22.3 (Se) and 2985 (Zn). The studied essential trace elements were found to have good and healthy contribution to daily nutrition of consumers in accordance to Recommended Dietary Allowance (RDA). The levels of toxic trace elements (As, Cd, Hg and Pb) were found in very low and concentrations and did not represent any risk to consumers. In addition, some element concentrations of raw milk showed a seasonal pattern: Cu and Zn had higher level in the summer, while As and Mn were more abundant in the winter.
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