The study of plants phenolic composition: Polygonum divaricatus L., Р. angustifolium (Pallas) Hara, P. amphibium L., P. aviculare L. by the method HPLC

As the result of conducted experiments in plants of polygonum 17 compounds of phenolic nature have been found. The high efficiency of chromatographic methods developed for different groups of phenolic compounds is the basis for a method of quantitative determination of active substances in plants of polygonum.