SUMMARY
By ionometric and atomic emission spectroscopy methods has been used for research. The contents of nitrates and 15 inorganic elements has been determined in groves of genus Carduus L. herbs and extracts. The herbs of Carduus nutans L. genus: Carduus nutans L., Carduus acanthoides L. species are perspective for use as hepatoactive, hepatoprotective and antioxidant drugs. The content of nitrates in flowers (leaves) of ?arduus L. genus: Carduus nutans L. (mg/1000 g), up to 180,90+15,33 (220,14+18,33); Carduus acanthoides L. (mg/1000 g), up to 188,86+15,67 (228,30+20,72) has been determined. The herbs of Carduus nutans L., Carduus acanthoides L. are contented of macro- and micro- inorganic elements (K, Ca, Mg, Fe) in sufficiently high concentrations; the inorganic element (Sr) in chronic values; the inorganic elements (Pb, Co, Cd, As, Hg) in significant concentrations. The contents of nitrates in lyophilized water extracts of herbs of Carduus nutans L., Carduus acanthoides L. up to 27,0-31,5%; inorganic elements up to 10,5-11,0% has been determined.