Quantitative spectrophotometric determination of alkaloids in roots of Vinca herbacea

A new spectrophotometric method has been developed for the quantitative determination of pharmacologically active alkaloids (maydine, reserpinine, kopsinine, tabersonine, norfluorocurarine) and their sum in roots of Vinca herbacea Walds. et Kit. The proposed technique is highly reproducible and adequately reflects the content of alkaloids in the roots and preparations of Vinca herbacea, which allows this method to be used for their standardization.