Inorganic analysis of herbal drugs. Part II. Plant and soil analysis - diverse bioavailability and uptake of essential and toxic elements
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Eleven elements (Cu, Zn, Mn, Fe, K, Ca, Mg, Ni, Cd, Pb and Cr) in seven herbal drugs (Salviae folium, Menthae piperitae, folium, Melissae folium, Lavandulae flos, Basilici herba, Marubii herba and Origani herha) and in rhizosphere soil samples were determined. A microwave digestion procedure preceded the measurements by the flame and electrothermal atomic absorption spectroscopy techniques (FAAS, ETAAS). For potentially hazardous elements and their bioavailability, BCF values were also calculated and discussed in order to identify possible sources of specific elements.