Serum levels of certain trace elements (Fe, Rb, Se, Zn) in healthy humans (part III).

In 95 healthy subjects serum concentrations of Fe, Rb, Se and Zn were determined by means of neutron activation analysis using the method of gamma spectrometry without isolation of different elements from the sample. The studied subjects were divided into 4 groups according to sex and age. In the serum of women rubidium concentration decreased with age.