Abstract
The aim of the study was to study the composition and ability to accumulate various elements in the leaves of aronia Mitchurina for scientific rationale of the possibility of their use in medicine and pharmacy.
 The composition and ability to accumulate various elements in the leaves of aronia Mitchurina harvested in the Tambov region were studied. The elemental composition of the leaves of aronia Mitchurina and the soil from the place of plant growth was studied by inductively coupled plasma chromato-mass spectrometry. In the raw material was found 61 chemical elements, including almost all essential: macronutrients, with the predominance of calcium, potassium, phosphorus and magnesium; trace elements, with the predominance of iron, zinc, sodium, manganese.
 It was found that the ratio of elements in the soil from the place of growth and in the raw material are different. Coefficient of biological accumulation for each element were estimated, on the basis of which all elements are classified into five groups. The elements of energetic accumulation include phosphorus, and the elements of highly accumulation include calcium, potassium, and zinc. The ability of chokeberry leaves to accumulate zinc in higher concentrations (64.32 µg/g) than other species of herbal raw materials allows us to view them as a possible natural source of this element in hypoelementosis associated with zinc deficiency in the body.
 Determined in the analysis is the content of toxic elements standardized in plant raw materials: lead, cadmium, mercury, arsenic. Their contents do not exceed the maximum permissible concentration limits given in the normative documentation.
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