Author/Authors :
Mohammadpourfard، Issa نويسنده Department of Food Safety and Hygiene, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran. , , Shariatifar، Nabi نويسنده Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , , Jahed-Khaniki، Gholam Reza نويسنده Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , , Ebadi-Fathabad، Eayob نويسنده Department of Environmental Health, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ,
Abstract :
Background and purpose: Determination of heavy metals in oils is necessary to establish quality
standards on a country level. This study aimed to determine of heavy metal contents (Cr, Ni, As,
Cd, Hg, Pb, Sb, Sn, Sr, Al) in 12 seed oil samples in Iran by inductively coupled plasma-optical
emission spectrometry (ICP-OES).
Materials and Methods: The concentrations of heavy metal were determined by wet acid
digestion methods with nitric acid (65%) and 4 ml peroxide hydrogenate on same samples using
ICP-OES.
Results: Results showed that the average of most important toxic metals detected in apricot oil
samples was as follows; 721.72 ?g/kg for Al 15 ?g/kg for Cd, 18 ?g/kg for Pb, 14 ?g/kg for As and
< 1 ?g/kg for Hg. Furthermore, The average of heavy metals detected in almond oil samples were as
follows; 1019.73 ?g/kg for Al, 10 ?g/kg for Cd, 21 ?g/kg for Pb and 11 ?g/kg for As and
< 1 ?g/kg for Hg. Also in the studied samples, Al was the highest concentrations among all metals.
Conclusion: Most of the samples of oils were found to be contaminated with notable amounts of
toxic metals which could be a threat to oil quality and human health.
