The determination of heavy metals in medical plants in Georgia

Abstract

The aim of this investigation is the determination of heavy metals (lead, cadmium, cooper and zinc) in the medicinal plants grown at the various part of Georgia. For the purposes to use of medicinal plants it is important to determine in them the content of the toxic microelements, especially since the ecological state in the world is changing for the worse. Accumulation of heavy metals in the various parts of plants is particularly important, because extreme demands are placed not only on the content of effective ingredients in these plants but also on their harmlessness. The followingparts of the plants:1. Rhizoma Potentillae, 2. Fructus Foeniculi, 3. Herba Hyperici, 4. Flores Chamomillae, 5. Folia Plantaginis Majoris, 6. Rhizomata et radices were investigated by diffe-rential-pulls polarographic The results of the study showed that medicinal herbs collected in Georgia have high quality, since one side the content of the toxic element – Pb in them is much lower than acceptable by the international standard and the conce-ntration of Cd is equal to zero. On the other side, concentration of essential microelements – Cu and Zn are normal.