Ukugcinwa kweeglasi zeglasi ezenziwe ngohlobo lwe-1, uhlobo lwe-A, i-33 eyandisiweyo yeglasi ye-borosilicate okanye i-51A yeglasi ye-amber, kunye nomthamo ukusuka kwi-20mL ukuya kwi-60mL, inika ixabiso le-pH rhoqo ukugcina ubomi besampulu, ii-caps ze-inert ze-chemically zifanelekile ezinkulu Kuba uninzi lwe-chromatography kunye nezicelo zokugcina, i-PTFE ephezulu ////// i-PTFE ephezulu yokucoca i-silicone isetyenziselwa ukucoca.