Niazi, Ali, Torkman, Mahtab D., Khorshidi, Neda. Spectrophotometric Determination of Mefenamic Acid in Biological Samples Using Magnetic Iron Oxide Nanoparticles as a Sorbent for Solid Phase Extraction. Journal of Nanoanalysis. 2015;2(2):46-56. 10.22034/jna.2015.02.002