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Concentration of Cd, Cr, Ni, and Pb were determined in peppermint leaves (Folium Menthae piperitae), chamomile blossom (Anthodium Chamomillae), and their infusions by atomic absorption spectrometry (AAS) after microwave digestion of plants samples. Peppermint and chamomile preparations by five different producers were purchased at various pharmacies in Poland. Infusions were made from herbs according to prescription for patients, provided by the producer of medicine on the package. Results show that in exam of medicinal plants the content of cadmium exceeds World Health Organization (WHO) standards. The highest level of extraction was observed for Ni (50-70% of the total content in herb), Cr (28-36%), Cd (14-16%), and the lowest for Pb (about 6%). The calculated daily intake all analyzed elements was very low. Phytotherapy with using of these herbs is safe for health of patient even in case of long time therapy.

Determination of the Cadmium, Chromium, Nickel, and Lead Ions Relays in Selected Polish Medicinal Plants and Their Infusion