Solid Phase Extraction-Spectrophotometric Determination Of Isoxsuprine Hydrochloride In Different Samples Using Modified Magnetic Nanoparticales. Journal of Pharmaceutical Negative Results, [S. l.], v. 13, p. 678–685, 2022. DOI: 10.47750/pnr.2022.13.S05.106. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/2281.. Acesso em: 23 jun. 2026.