E wezụga ụkpụrụ nlekọta siri ike na SOP, ihe ndị yiri ya ga-enye aka na nhazi usoro, nyochaa ngwaahịa, dị ka igwe HPLC (igwe arụmọrụ chromatography), gas chromatography gas, LC / MS (igwe-chromatography-mass spectrometry) igwe, wdg.
