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001-es BibID:	BIBFORM019137
Első szerző:	Jurca Tünde
Cím:	Metals determination by Microwave Digestion ICP-OES of Some Supplements / Tunde Jurca, Eleonora Marian, Mihaly Braun, Laura Vicas
Dátum:	2011
ISSN:	0034-7752
Megjegyzések:	ICP-OES (Inductively Coupled Plasma Optical Emission Spectrometry) analysis was applied to assess element concentrations in six samples of mineral supplements/multivitamins acquired in pharmacies from Romania. Concentrations of Fe, Ca, Mg, Zn, Li, Ba, Sr, Ni, Cu, Sn, Al, Co, Cr, Mn, Mo, Se, K, Na, Cd, Pb were determined. The digestion method with acid mixture (HNO3 an H2O2) was used to destroy the organic material. Generally, the Ca, Fe, K and Mg contents were normal to higher range compared to the labelled quantity. The Cu, Mn, Se, Ni, Sn and Zn contents were low in most of the formulations when compared to the labelled amounts. Li, Ba, Sr, Na, Al, Cr, Sr, Co were quantified in some formulations where they were not labelled, this may be due to the excipients that may have been used in the formulations. The concentration of the toxic elements Pb and Cd are within the allowed limits. Based on the results obtained in the present study, it is concluded that the present techniques are adequate for the routine determination of heavy metals concentration in mineral supplements.
Tárgyszavak:	Természettudományok Kémiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban mineral supplements heavy metals microwave digestion ICP-OES
Megjelenés:	Revista de chimie. - 62 : 2 (2011), p. 139-141. -
További szerzők:	Marian, Eleonora Braun Mihály (1966-) (vegyész, analitikus) Vicas, Laura
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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