A na-eji iko borosilicate inert dị elu, nke nwere ike ịnabata ihe nlele na gburugburu ebe dị oke egwu maka nnwale nyocha ziri ezi. Vial isi oghere anyị nwere calibers na ikike, dabara adaba maka chromatography gas dị iche iche na sistemu injection akpaka.