Chromatographic spectra retention of volatile components in the equilibrium vapor phase of medicinal plants “Eucalyptus viminalise Labill”, “Melissa officinalis L.”, “Sophora Japonical L.”

Gas chromatographic investigation of headspace of starting materials of herbal origin of Melissa (Melissa officinalis L.), manna gum (Eucalyptus viminalise Labill) and Chinese scholar tree (Sophora Japonical L.) is carried out. For light constituents retention indices $I_i^T$ on capillary column with polydimethylsiloxane stationary phase in the mode of linear programming of temperature and relative areas of peaks $A_{i,\text{отн}} $ are determined. It is established that gas chromatographic spectrum (complex of values $I_i^T$ and $A_{i,\text{отн}}$) of light constituents of headspace has a specific character and may serve as a characteristics of authenticity of starting materials of herbal origin.