Boisxo‘jayeva Adibaxon Anvarovna, Xalilova Nilufar Shuxratillayevna, and Usmanalieva Zumrad Uktamovna. “Identification of The Composition of Substances Isolated from A Biological Fluid (Urine) Using IR Spectrophotometry and Gas Chromatography–Mass Spectrometry Methods”. American Journal Of Biomedical Science & Pharmaceutical Innovation, vol. 6, no. 04, Apr. 2026, pp. 54-58, doi:10.37547/ajbspi/Volume06Issue04-09.