Ikhithi iyasebenza ekwelashweni kwesampula okufanele ihlolwe, ukuze i-analyte esesampula ikhululwe ekubopheni kwezinye izinto, ukuze kube lula ukusetshenziswa kwama-reagents okuxilonga ngaphakathi kwesibeletho noma amathuluzi okuhlola i-analyte.
I-ejenti yokukhipha isampula yohlobo lwe-I ifanelekela amasampula egciwane,futhiI-ejenti yokukhipha isampula yohlobo lwesibili ifanelekela amasampula ebhaktheriya kanye nesifo sofuba.