Introduction. Trace elements are an essential part of the human body, but about 80 % population notes imbalance in their content. Medicinal plants contain minerals accessible and digestible form together with biologically active substances. herbal preparations very popular for prevention as complex therapy various diseases. However, information content trace multicomponent medicinal is limited....

This article examines the content of type operational experiment defined in Article 15(3) Operational Activities Law (OAL) (hereinafter referred to about experiments meaning OAL as experiment). The aim study is analyse performance an experiment, define basic elements that form structure measure and (element) qualities which must exist order for it be performed successfully. To achieve aim, rese...