@article{Krotova2026comparative, author={Krotova, I.V. and Lening, V.D. and Grechnev, D.M. and Zakharova, A.A. and Krekhtunova, K.I.}, title={COMPARATIVE ANALYSIS OF METHODS OF QUANTITATIVE DETERMINATION OF ALKALOIDS FOR CUSTOMS EXAMINATION PURPOSES}, journal={Trade, service, food industry}, publisher={Siberian Federal University}, year={2026}, pages={89-99}, volume={6}, issue={1}, }