Contents of essential elements in biological samples at preschool age children

Being in environment in the increased concentrations, chemical elements collect in human organism, rendering negative effects. In research the contents of Cu, Fe, Mn, Co and Zn in hair, urine and excrements at 50 children of preschool age was determined by method of atomic absorption spectrometry. Monitoring the contents of essential elements in various biological samples is of great importance for development the reference values and standards of chemical elements contents and for assessment the children health state.