Trans-medium lanthanide transition along the chain «soil – herbal medicinal raw materials – aqueous extracts»

Abstract

The article presents the results of an experimental study of the trans-medium transition of elements of the lanthanide group along the chain «soil – medicinal plant raw materials – water extracts». Pharmacopoeic types of medicinal vegetal raw materials were used as subjects of investigation: nettle leaves dioecious (Urtica dioica L.), plantain leaves large (Plantago major L.), common pajma flowers (Tanacetum vulgare L.), heart-shaped linden flowers (Tilia cordata Mill.), herb of five-lobed dumplings (Leonurus quinquelobatus Gilib.), grass of bitter wormwood (Artemisia absinthium L.), common millennium grass (Achillea millefolium L.), bird mountain grass (Polygonum aviculare L.), roots of the common bladder (Arctium lappa L.), roots of the dandelion drug (Taraxacum officinale F. H. Wigg). The microelement composition of the samples was studied by mass spectroscopic method after acid-microwave decomposition. The total lanthanide content of the studied LMS species ranged from 0.08 mg/g to 2.41 mg/g. The highest level of lanthanide concentration was observed in the studied roots of plants, as well as in the grass of the bird mountain and the leaves of the great plantain (1.20 – 2.41 mg/g). The calculation of biological absorption coefficients showed that all elements of the lanthanide group belong to elements of weak accumulation and very weak capture. The degree of trans-medium transition of lanthanides along the chain «soil – medicinal plant raw materials – water extracts» was not distinguished by high numerical values and did not exceed 0.27%. The highest values of this indicator are noted for the leaves of the big plantain, as well as for the roots of the common burdock and the grass of the bird mountain.

DOI: 10.30906/2073-8099-2023-15-1-3-10