I-HeadSpace Gas Chromatography Suply Fasket
Ukulungiswa kwesampula okufanele kubalulekile ekutholeni imiphumela enembile nezezimali ekuhlaziyweni kwe-HeadSpace Gas Chromatography. Izinyathelo ezilandelayo zichaza ukucatshangelwa okuyisisekelo kokulungiselela amasampula ukuhlaziya kwe-headSpace.
1. Khetha isampula efanelekile
Ukukhetha i-Vial yesampula efanele kubalulekile ukuze uphumelele wesampula we-HeadSpace. Amasayizi ajwayelekile we-vial afaka i-6ml, 10ml, ne-20ml, enama-vials angama-20ml asetshenziswa kakhulu. Izici ezibalulekile okufanele ucabangele lapho ukhetha ama-vials kufaka phakathi:
Izinto ezibonakalayo: ama-vials ngokuvamile enziwe ngengilazi noma ngepulasitiki. Ama-vials engilazi alungele kangcono amasampula aguqukayo ngenxa yokungavuthi kwawo kanye namathuba aphansi wokungcola okulimazayo.
I-Seating Mechanism: Ama-Vaials angabekwa uphawu nge-crimp noma ama-screw cap. Ama-Crimp Vials ahlinzeka nge-Airtitight Seal, okubaluleke kakhulu ukugcina ubuqotho be-headpace.
Ikhwalithi ye-Septum: I-Septu esetshenziselwa ukubopha ama-vials ingakwazi ukwethula izisulu uma zisezingeni eliphansi. Funa nge-Septa eyenzelwe ngqo izinhlelo zokusebenza ze-Headspace, ngoba mancane amathuba okuba afake i-headpace.
2. Isampula yevolumu ne-dilution
Ivolumu yesampula ku-vial ibalulekile ekufezeni ukugxila okuhle kwe-headspace. Ngokuvamile, ivolumu yesampuli kufanele libe cishe ngo-1 \ 3 kuya ku-1 \ 2 kwevolumu eliphelele le-vial ukuhlinzeka ngekhanda elanele lesigaba segesi.
I-Dilution: Uma ukugxila kwesampula kuphezulu kakhulu, kungaholela ekutheni kufakwe ekhanda eligcwele, okuholela ekunciphiseni okungalungile. Ukunciphisa isampula nge-solvent efanele kungasiza ukufeza ukugcwala okufunwa kokuhlaziywa okuguqukayo.
3. Ukulawulwa kokushisa
Ukushisa kudlala indima ebalulekile kwisampula ye-headpace njengoba kuthinta ukuguquguquka kokuhlaziywa kokuhlaziya nokuhlukaniswa kwazo esigabeni segesi.
Izinga lokulinganisa lokulingana Izinga lokushisa elifanele lincike ekuhlaziyweni okuthile okuhlaziywa futhi kufanele kunqunywe ngesikhathi sokuthuthukiswa kwendlela.
Isikhathi sokulingana: Vumela isikhathi esanele sokuthola isampula ukufinyelela ukulingana. Lokhu kungahluka ngokuya nge-matrix eyisampula kanye nokuguquguquka kwamakhompiyutha. Izikhathi zokulingana ezijwayelekile zisukela emizuzwini engama-30 kuya emahoreni ambalwa.
4. Nciphisa ukungcola
Ukungcola kungakuthinta kakhulu ukunemba kwe-Headspace Gas Chromatography. Ukuze unciphise ubungozi bokungcola, yenza okulandelayo:
Sebenzisa ama-vials ahlanjululwe ngaphambili: Sebenzisa njalo ama-vials ahlanziwe ukuze ugweme ukwethulwa kokungcola ngesikhathi sokupakisha noma ukuphathwa.
Izikhala ezingenalutho: Indlela yokugijima izikhala ukukhomba imithombo yokungcoliswa. Lokhu kufaka ukuhlaziya isampula elingenalutho usebenzisa ukulungisa okufanayo kanye nezinqubo zokuhlaziya ukuqinisekisa ukuthi azikho iziqongo ezingafuneki zivela ku-chromatograph.
Izimo ezilawulwayo zezemvelo: Yenza ukulungiswa kwesampula endaweni ehlanzekile ukunciphisa ukuvezwa kwezinto ezingcolile.
5. Khetha inqubo efanelekile ye-HeadSpace
Njengoba kushiwo ngaphambili, isampula ye-headpace ingaba yi-static noma inamandla. Ukukhethwa kwenqubo kuya ngohlelo oluthile kanye nohlobo lwesampula.
I-Static Headspace: Le ndlela ilungele izinhlelo eziningi futhi isetshenziswa kabanzi ukuhlaziya amakhompiyutha aguqukayo ku-Liquids nama-Solids. Ivumela ukuhlaziya ukuthi ukwahlukanisa ngokwemvelo ku-Headspace ngaphandle kokwethulwa kwegesi eyengeziwe.
I-Dynamic HeadSpace: Le ndlela ilungele kangcono amasampula adinga ukuhlanzwa okuqhubekayo ukuze kuthwebule amakhompiyutha aguqukayo. Imvamisa isetshenziswa kuzinhlelo zokusebenza ezinjengokuhlolwa kwemvelo nokuhlaziywa kokudla lapho amasampula angaqukatha ukugxila okuphansi kokuhlaziywa.