Cacisa i-20 yegesi yegesi yegesi ye-vials enamatywina angama-20 mm crugre, eyenzelwe ukulingana uninzi lweentloko zentloko. Yenzelwe ukusebenzisa ukwahlulahlulahlula kunye ne-inorganic yezinto zokuhlalutya, i-chromatography ye-vials iza ngeendlela ezahlukeneyo zokuqinisekisa ukuba ukuqinisekisa ukungangqinelani kweekhemikhali.