Ukuthola ingasibhali njenge-argon, helium, neon, krypton, kanye no-xenon kusilulu kuyindlela eqasha kakhulu yokwahlukanisa silulu. Izixhobo zethu zokuthola ingasibhali, ezenzakala ihlanganisa indlela yokuhlenga kwizimu, ukugcina okugcweleyo, nokwahlukanisa ukuze kucungeke amandla apholile ku-99.999% (igredhi 5N) noma ngaphezulu. Lezi ngasibhali ezinezimali ezide, zibaluleke kakhulu ekwenzeni umsebenzi wokuhlanganiswa, ukulungiselela kwezinklampu, ekwakhiweni kwezinhlelo-mgodi, ekunyuseni kwezinsimbi, kanye nezempilo eziphambili. Siyaphakade ukunceda abasesha bethu ukuthola inani eliphakeme kakhulu kusilulu.
Ukukhuthazwa kwegesi esimbiwe kusebenzisa ukudwelisa nokuhlambuluka. Kusuka kohlukaniso lwesintu, izigaba zokuhlukanisa ezithile zifakwa ekugcineni iziqhamo ezikhulu zesisodwa, emva koko kubekwa ngqondweni futhi kuchanjiwe amathambo amakhethemeleka njenge-argon, neon, krypton, ne-xenon, ukufika ekususweni kabuhlungu konke. I-output ayinakho indlela eyisisekelo, ikhuthaza kabusha ukuze ihlanze amathuba amancane, okuphepheni kakhulu kwizindawo ezithile eziphucukene. Ukunciphisa kungafika kungalapha kanye 99.999%, ukulandela izidingo eziningi kwezinhlelo ezintsha. Izici ezimbiyela zokwenza: inqolobane yenzelwe ngqondweni, inamathuluzi okulandela okuphepheni kakhulu; amandla wemoto etholakala akulungiswa ngokulinganiselwe kumandla wokwakha (okwesibini amandla aphathekayo); inkinga yokuphepha iphephile, nokulinganisa kakhulu kwezinklinga nezinkinga. Izici zokwenza zingakulungiswa ngokusheshayo ngokulinganisa kizidingo ezithile zomthengi ukuqinisekisa ukuthobela futhi kuhlange ukunciphisa kwezinto.