I-20ml yokunemba isikulufu se-headspace vial, i-18mm, i-round round, i-vial yesikhala esiphezulu, i-adsorption eqinile. Izitsha ze-headspace zenziwa ukuze zinikeze ubukhulu bengilazi obufanayo obuqinisekisa ngisho nokusatshalaliswa kokushisa ukuze kuhlale kuthembekile amasampula.