Qolbi, R. A., & Al Azzahra, Y. (2026). Analysis of Alkaloid Content in Extract and Fractions of Trembesi Seeds (Samanea saman Merr.) Based on Solvent Polarity Using UV-Vis Spectrophotometry. Journal of Pharmaceutical and Sciences, 9(1), 494–503. https://doi.org/10.36490/journal-jps.com.v9i1.1101