DETERMINATION OF TERPENE LACTONES IN MEDICINAL PRODUCTS CONTAINING GINKGO BILOBA EXTRACT
Two drugs based on the extract of Ginkgo biloba, were analysed according to the content of terpene lactones. Both samples had a quality certificate, confirming the content of a standardized extract of Ginkgo biloba not less than 6 terpene lactones. The total content of terpene lactones was determined by high-performance liquid chromatography with UV detection. The study revealed a significant difference in the quality of drugs obtained on the basis of standardized (EGb 761®) and non-standardized dry extracts of Ginkgo biloba.