Pakati pa huglc mbale zomwe zaperekedwa ndi Aijiren, pali Voplc Vial yokhala ndi 4ml, yomwe ndi yayikulu kwambiri ngati ya 2ml hplc vial, ndipo kutchinga kwake ndikokulirapo kuposa momwe ziliri wamba hplc, yomwe ndi 13mm mulingo. Valication yayikulu imatha kukhala ndi zitsanzo zambiri, ndipo calior yolimba imathandizanso kulowa mkati ndi kunja kwa singano yotopetsa. Mitengo ya 4ml HPLC ndiyoyenera kwambiri pakuwunika zida ndi zitsanzo zambiri.