AMBIENTUM BIOETHICA BIOLOGIA CHEMIA DIGITALIA DRAMATICA EDUCATIO ARTIS GYMNAST. ENGINEERING EPHEMERIDES EUROPAEA GEOGRAPHIA GEOLOGIA HISTORIA HISTORIA ARTIUM INFORMATICA IURISPRUDENTIA MATHEMATICA MUSICA NEGOTIA OECONOMICA PHILOLOGIA PHILOSOPHIA PHYSICA POLITICA PSYCHOLOGIA-PAEDAGOGIA SOCIOLOGIA THEOLOGIA CATHOLICA THEOLOGIA CATHOLICA LATIN THEOLOGIA GR.-CATH. VARAD THEOLOGIA ORTHODOXA THEOLOGIA REF. TRANSYLVAN
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STUDIA CHEMIA - Ediţia nr.1 din 2012 | |||||||
Articol: |
ESSENTIAL AND TOXIC ELEMENTS IN DIETARY SUPPLEMENTS DETERMINED BY ICP – MS. Autori: ALIN IRONIM MIHĂLŢAN, ANCA NAGHIU, CLAUDIU TĂNĂSELIA, TIBERIU FRENTIU, CLAUDIA CIMPOIU. |
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Rezumat: Samples of widely used dietary supplements distributed on the Romanian market were analyzed by inductively coupled plasma mass spectrometry (ICP-MS) in order to assess the levels of oligoelements Co, Cr, Cu, Mn, Ni, and Zn as well as potentially toxic heavy metals Cd and Pb, and compare them with the maximum allowable levels (MAL). The following concentration ranges were obtained (in mg g-1): Cd 0.01-0.09; Co 0.03-0.6; Cr 1.1-11.9; Cu 5.5-14.7; Mn 1.8-39.1; Ni 0.4-4.7; Pb 0.8-3.1; Zn 18.8-12119.4. Several analyzed products had metals levels above the maximum allowable limits (Pb: one plant based product and one multivitamin product; Zn: two multivitamin multimineral products). The estimated cumulative daily intakes of only one formulation was higher than the oral permitted daily exposures set by the United States Pharmacopeia (USP) Advisory Panel on metal impurities (Pb: one plant based product). Such products present a significant additional source of metals in the human diet, and therefore could be harmful for human health. Keywords: dietary supplements, inductively couple plasma mass spectrometry, heavy metal levels, cumulative daily intakes |
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