The 8-425 screw cap ndi septa ya 8mm vial imagwirizana ndi mapulogalamu osiyanasiyana a labotale. Amagwiritsidwa ntchito m'maluso a chromatography, monga ma gramatography chromatography (hplc). Zipangizo zomata izi ndizoyenera kusanthula kosalekeza komanso kafukufuku wofufuza, kuwonetsetsa zotsatira zodalirika komanso zobekemera.