Direct determination of manganese, copper, lead, and mercury in biologicalsamples by Zeeman atomic absorption spectrometry with high-frequency modulation of polarization
Aa. Ganeev et al., Direct determination of manganese, copper, lead, and mercury in biologicalsamples by Zeeman atomic absorption spectrometry with high-frequency modulation of polarization, J ANALYT CH, 54(1), 1999, pp. 61-69
Manganese, copper, lead, and mercury are directly determined (without addit
ional substances and reagents or with their minimum use) in blood, urine, a
nd hair by Zeeman atomic absorption spectrometry with high-frequency modula
tion of polarization (ZAAS HFMP) and atomization in electrothermal and gas-
discharge atomizers. The high selectivity of differential atomic absorption
spectrometry allows the determination of the elemental content of biologic
al samples under severe conditions, i.e., in the presence of substantial ba
ckground absorption. The results obtained on different analytical instrumen
ts (with electrothermal and gas-discharge atomizers) in the direct determin
ation of elements in biological samples and upon the acid decomposition of
samples are in good agreement.