Ukukhetha kweSepta kwama-autosampler vials

I-Septum oyikhethayo eyakhoI-Autosampler Vialingathinta umthelela wesampula, ukuphepha kwesampula, ukugoba inaliti kanye nama-blockages, kanye nesikhathi sokuphumula. Ungavumeli ubunzima bokukhethwa kwe-Septa bumbezela phansi.

Ithuluzi Lokukhetha I-Septa

Ithuluzi lokukhetha se-Septa lincoma i-Septa engcono kakhulu ngokuphendula imibuzo embalwa elula, njenge:

1. I-HPLC, UHPLC, noma i-GC?

2. Izikulufu zentambo, crampimp top cap, kanye nama-caps we-snap?

3. Uhlobo lwenaliti ye-Autosampler ne-Tip Direyic?

4. I-Slit noma i-Non-Slit Design?

5. Ikhono Lokuqaphela?

6. Solvents kanye lokushisa okuzovezwa yi-pepta?

7. Imijovo eminingi?

Isihlahla Sokuthatha Isinqumo

Ithuluzi lokukhetha se-Septa lisebenzisa ishadi elingezansi ukukhetha i-Septum ezosiza ukuvikela ukungcoliswa nokugwema ukulimala.

Amaphuzu amane abalulekile okudingeka uwacabangele lapho ukhethaI-Septa efanelekile:

1. Ithuluzi

Umthengisi ngamunye wezinsimbi usebenzisa izinhlobo zenaliti ezahlukahlukene ze-Inductor nakwamanye amathuluzi, anesilinganiso sokulala, noma akhethe impahla enogu lolwandle (Hardenness) Inani lizosiza ukunciphisa amathuba ezingqinamba zenalizo, njengokugoba inaliti.

2. Amakhompiyutha athakazelayo

Uma amakhompiyutha akho aguquguqukayo bese ekhetha i-Septe ezokunikeza uphawu oluqinile lubalulekile ekuvikeleni ukulahleka okuyikho. Uhlelo lwethu lokuvalwa lwe-vial athuthukile (AVCS) CAPS lusisusa ngokuzungeza ukuzungeza ukungcola okuphezulu kwe-seal lapho uvala i-vial.

3. Solvents

Amanye ama-solvents ajwayele ukusetshenziswa kwe-HPLC, i-UHPLC, kanye ne-GC ukuhlola kungathinta ubuqotho be-SEPTA.

4. Ukushisa

Uma udinga ukubeka isampula ebabazekayo endaweni yokushisa ephezulu, kuzodingeka ukuthi ucabangele izinto ze-SEPTA ezingamelana namazinga okushisa aphezulu.

Izinto zokwakha ze-SEPT& Izakhiwo

Kwenziwa ngeSepthemba ngezinto ezahlukahlukene. Bona ngezansi ngezincazelo nokusetshenziswa kwezinhlobo ezahlukene zezinto zokwazisa nge-SEPTA.

I-Rubber Septa

Zisetshenziselwa ngokuyinhloko ukuhlaziya okujwayelekile kugesi i-chromatography. Inikeza amandla alinganiselayo okusola kabusha nokuvuselelwa okuhle kwamakhemikhali. Akunconyelwe imijovo eminingi noma ukubamba amasampula ukuze kuhlaziywe okunye. I-PTFE ingungqimba lokuvikela owake waphuka iveza irabha ekuhlaselweni kwamakhemikhali.

I-PTFE \ irabha ebomvu: irabha ephansi durometer ivumela ukungena kwe-witle. I-Septum ethandwa futhi yezomnotho ngezinjongo ezijwayelekile ze-GC.

I-PTFE \ irabha: Ibanga elinzima lenjoloba ukuze lisetshenziswe ngenaliti yokubhoboza. Septa ethandwa kakhulu futhi kwezomnotho ngezinjongo ezijwayelekile ze-GC.

Pre-slit ptfe \ irabha ebomvu: Injoloba yangaphambi kokukhanya, esezingeni eliphakeme elibomvu elinongqikithi omncane (0.003 ")

Silicone Rubber Septa

Ikhwalithi ephezulu, irabha le-silicone lahlaya ku-PTFE. Sebenzisa lapho kufanele kube khona izimfanelo ezinhle kakhulu zokuphindaphinda. Kunconywa imijovo eminingi lapho kunconywa lapho kudingeka khona imijovo eminingi. I-SpecialTred ekhethwayo yokusebenzisa izicelo ze-Chromatography.

I-PTFE \ abikone: i-silicone emsulwa kakhulu ethambile eyayihlaselwe i-PTFE. I-Septum iyamelana nama-coring futhi inconyelwa amathuluzi ngezinaliti ezinhle ze-gauge. Kunconyelwe futhi i-LC-MS ne-GC-MS ngenxa yobumsulwa obuphezulu.

Ptfe \ abitone \ ptfe: ungqimba lwe-PTFE ohlangothini ngalunye lobulukhuni obuphakathi. Iningi elimelana ne-condering nezimpawu ezingenhla ze-repealing. Kunconyelwe izinhlelo zokusebenza ezifunwa kakhulu njengokuhlaziywa kwalandela, isikhathi eside phakathi kwemijovo, noma amazinga angaphakathi. Sebenzisa noma yimuphi umuntu we-autosampler usebenzisa ububanzi obukhulu, izinaliti zesirinji ezi-blunt-tip.

Pre-slit ptfe \ abikone: I-silicone yangaphambilini, esezingeni eliphakeme elimhlophe elihlanzekile elibhekene ne-PTFE. Ngezinhlelo zokusebenza zisebenzisa inaliti yesirinji emincane kakhulu noma ngezimo lapho i-vacuum ingakha i-vial.

I-PTFE ne-Fluoropolymers

Ukumelana okuhle kakhulu kwamakhemikhali futhi kusetshenziswe njengesendlalelo sokuvikela ama-elastomers amancane amelana nawo.

I-Buyl Rubber \ Chlorobutyl Rubber

Ukukhetha okungokomnotho kwamazinga okushisa aphansi (<125 ° C) noma izinhlelo eziphansi zengcindezelo. Ayilungele ama-alkanes, e-benzene, izixazululo ezihlangene noma i-cyclohexane ngaphandle kwesendlalelo sokuvikela se-PTFE.

I-Silicone Rubber

Ukukhetha okuhle kwe-SEPTAT ama-volutiles aneziqongo eziphansi kakhulu zangemuva kanye nokuvumela okuphansi. Ilungele futhi amasampula namasampula anamanzi. Izici ezinhle zokuphindaphinda kanye nokumelana ne-coring.

I-Natural PTFE \ Blue Silicone: Ukukhetha okungcono kweSepta lapho amazinga okushisa angaphezulu kuka-125 ° C.

I-Natural PTFE \ Red Silicone: Ukushisa okuphezulu okulungiselelwe ngokopha okuphansi. Ukukhetha okuhle kweSeta lapho amazinga okushisa afinyelela ku-300 ° C.

I-Silicone eluhlaza okwesibhakabhaka \ Amandla wokuphinda aphindaphindwayo akhawulelwe ngenxa yesendlalelo se-silicone esincanyana.

I-Aluminium \ White Silicone: I-Aluminium Face Face ivikela uphawu lwe-silicone. I-silicone emhlophe ilungele ukusetshenziswa kuze kufike ku-170 ° C.

I-Aluminium \ Red Silicone: Ubuso obubonisayo bukela buvikele uphawu lwe-silicone. I-Silicone ebomvu ilungele ukusetshenziswa emazingeni okushisa afinyelela ku-250 ° C.

I-Blue Silicone \ Natural PTFE: I-Silicone ethambile enokwakhiwa okuhlanzekile kokuphazanyiswa okuncane. Izimpawu zezincane zilungele ukugeza, ukukhishwa kwe-solvent, kanye nesigaba esiqinile se-microxtraction (SPME) izinhlelo zokusebenza ezithile. Hhayi izicelo ze-headspace eziqondile.

Ukugcina

Imibono eminingi mayelana nokukhethwa kweSepta Dinga i-Plus yakho. Ngakho-ke izinqumo eziningi ngokukhethwa kweSepta zamukelwa.