HUMAN EXPOSURE TO TRACE-ELEMENTS THROUGH DIET

During the past several years, we have collected more than 50 total di et samples from different socioeconomic groups in Turkey by the duplic ate-portion technique. The samples were homogenized with a titanium-bl ade homogenizer, freeze-dried, and analyzed for their minor and trace elements by atomic absorption spectrometry and by instrumental neutron activation analysis. As a result we have determined concentrations of more than 25 elements in total diet and calculated daily dietary inta kes of these population groups. Sources of trace elements were estimat ed through correlation coefficient and enrichment factor calculations.