Химическая изменчивость состава эфирного масла чабреца на территории Республики Беларусь

During the study of essential oil of Thymus serpyllum L .and Thymus pulegioides L. using the method of chromatography-mass spectrometry (GC-MS) it was found out that Thymus serpyllum L. contains a small amount of thymol and carvacrol, which questions the suitability of Thymus serpyllum L. as a source of crude drug for Serpylli herba according to the State Phamacopoeia of RB. There against the great quantity of carvacrol was observed in essential oil of Thymus pulegioides L., which makes this species more perspective source of new crude drug species Thymi pulegioides herba instead of Serpylli herb