Ukukhetha i-Septa ye-vials ye-autosampler

I-Septum ukhetha eyakhoI-autosampler vialInokuba nefuthe kwesampulu yesampulu, ukhuseleko lwesampulu, ukugoba kwenaliti kunye neebhloko, kunye nexesha lokuphumla. Ungavumeli ubunzima bokhetho lase-Septa luyadada.

Isixhobo sokukhetha saseSepta

Isixhobo esichongiweyo se-Septa sicebisa ukuba yeyona nto ilungileyo ngokuphendula imibuzo elula elula, njenge:

1. I-HPPC, i-UHPLC, okanye i-GC?

2. I-screw ye-tips ye-store, i-crimpp ephezulu yeCAPS, kwaye i-snap-it?

3. I-Autosampler inaliti yohlobo lwe-I-Autosampler kunye ne-Diaceter?

4. Uyilo lwe-slit okanye uyilo olungafanelekanga?

5. Ngaba ubuchule?

6. Izinyibilikisi kunye neqondo lokushisa eliza kuvezwa yiSepta?

7. Inaliti ezininzi?

Umthi weSepta

Isixhobo esichongiweyo se-Septa sisebenzisa itshathi engezantsi ukukhetha i-septum eya kunceda ukukhusela ungcoliseko kwaye uphephe ukonakala.

Amanqaku amane abalulekileyo ekufuneka uqwalasele xa ukhetha iI-Septa efanelekileyo:

1. Isixhobo

Isixhobo ngasinye sezixhobo zisebenzisa iintlobo ezahlukeneyo zenzwa kunye nezixhobo ezithile, zine-pre-slit yexabiso, okanye ukukhetha umbandela osezantsi (ubukhali).

I-2. Imigqaliselo yomdla

Ukuba imithombo yakho iguqukile emva koko inyule iSepta eza kubonelela ngetywina eliqinileyo liphambili ukuthintela ukulahleka okuhlanganisiweyo. Inkqubo yethu yokuvala i-Vial ye-Vial

I-3. Izinyibilikisi

Ezinye izicoci eziqhelekileyo ezisetyenziselwa i-HPLC, u-Uhlc, novavanyo lwe-GC lunokuba nefuthe lokunyaniseka kweSepta.

4. Ubushushu

Ukuba ufuna ukubeka isampulu ye-vial kwimo yobushushu obuphezulu, kuya kufuneka uqwalasele izixhobo zeSepta ezinokuthintela amaqondo obushushu aphezulu.

Izixhobo zeSepta& Iipropathi

I-Septa yenziwe kwizixhobo ezahlukeneyo. Jonga ngezantsi iinkcazo kunye nokusetyenziswa kweentlobo ezahlukeneyo zezinto zeSepta.

I-Subber Septa

Zisetyenziselwa ikakhulu ngohlalutyo lwesiqhelo kwi-chromatography yegesi. Inika amandla aphakathi okutsha kunye nokungabikho kwemichiza efanelekileyo. Akucetyiswanga kwiinaliti ezininzi okanye ukubamba iisampulu zohlalutyo oluqhubekayo. I-ptfe ngumlinganiswa okhuselayo owawukhe waqhekeza irabha kuhlaselo lweekhemikhali.

I-ptfe \ / irabha ebomvu: I-durometer yerabha ye-durometer ivumela i-intinele yenaliti. I-Septum ethandwayo necono uqoqosho yeenjongo ze-GC ngokubanzi.

I-ptfe \ / irabha: Ibanga elinzima lerabha yerabha ukuze isetyenziswe ngenaliti ehlabayo. Eyona nto ithandwayo nenoqoqosho kwiinjongo ze-GC ngokubanzi.

I-PHE-SLIT PTFA \ / irabha ebomvu: I-Pre-Slit, irabha ebomvu ebomvu enomngxunya (0.003) ye-PTFE. Kwizicelo zisebenzisa inaliti ye-ptfe.

I-Silicone Rubber Septa

Umgangatho ophezulu, irabha ye-silicone i-PTFE. Sebenzisa xa iimpawu zokuqhelanisa ezifanelekileyo. I-Septum ichasa ukulungiswa kwaye iyacetyiswa xa inaliti ezininzi iyafuneka. I-Septa ekhethiweyo yokusetyenziswa kwizicelo zolwelo zeChromatography.

Ptfe \ / Silicone: I-silicone ecocekileyo icocekile i-PTFE. I-Septum ichasa ukulungiswa kwaye iyacetyiswa kwizixhobo ezinamadinga e-gauge. Icetyiswa kwakhona kwi-LC-Nks kunye ne-GC-Nks ngenxa yobunyulu obuphezulu.

I-ptfe \ / i-silicone \ / ptfe: umaleko we-ptfe kwicala ngalinye le-silium ephantsi. Uninzi luxhathise ukulungisa iimpawu eziphakathi kokutsha. Kuyacetyiswa ukuba uninzi lwezicelo ezifunwayo ezinjengokuhlalutyo, ixesha elide phakathi kwenaliti, okanye kwimigangatho yangaphakathi. Sebenzisa nayiphi na i-autosampler usebenzisa ububanzi obukhulu, i-slinge-tinge-tinge inaliti.

I-PHE-SLIT PTFA \ / Silicone: I-plit yangaphambi, i-Wigh-Slit emhlophe emhlophe ejongene ne-ptfe. Izicelo zisebenzisa inaliti ye-geinge ye-gage

I-ptfe kunye ne-fluoorollymers

Ukunganyangeki kakuhle kweekhemikhali kunye nokusetyenziswa njengomaleko okhuselayo kwii-elastomers ezinganyangekiyo.

I-Butyl Ruber \ / chlorobyl irabha

Ukukhetha kwezoqoqosho kubushushu obuphantsi (<125 ° C) okanye izicelo zoxinzelelo oluphantsi. Ayilungelanga i-Alkanes, i-Bezene, izinyibilikisi ze-bivinated okanye i-cyclohexane ngaphandle kwe-PTFE.

Irabha ye-silicone

Ukhetho oluhle lwe-Septa lwe-volatiles nge-peokies ephantsi kakhulu kwaye iphantsi kakhulu. Ilungele i-alcohols kunye neesampulu ezimanzi. Iimpawu ezilungileyo zokwenzayo kunye nokuxhathisa ekucoceni.

I-ptfe \ ptfe \ / i-Blue Silicone: I-Septa yeyona ndlela ye-Septa xa amaqondo obushushu angaphezulu kwe-125 ° C.

I-ptfe \ ptfe \ / i-Red Silicone: Amaqondo obushushu aphezulu aqhekezwe ngetywina eliphantsi. Eyona ndlela ilungileyo yeSepta xa amaqondo obushushu aneminyaka engama-300 ° C.

I-Blue Silicone \ / Red ptfe: Itywina le-1.4 mm nge-ptfe. Ukubanakho ukuqhekeza kuncitshiswe ngenxa ye-thericone ye-silicone.

I-Aluminium \ / I-White Silicone: Ubuso be-aluminiuve buminum buKhusela itywina le-silicone. I-White Silicone ilungele ukusetyenziswa ukuya kuthi ga kwi-170 ° C.

I-Aluminium \ / I-Red Silicone: Ubuso be-aluminium obonakalayo buKhusela itywina le-silicone. I-sodlicone ebomvu ilungele ukusetyenziswa kumaqondo obushushu ukuya kwi-250 ° C.

I-Blue Silicone \ / yendalo ptfe: I-silicone ethambileyo yokuqulunqa impikiswano ephazamisayo. Amatywina amancinci alungele ukuhlamba iSolvent, Ukukhutshelwa kweSolvent, kunye neNkqubo yeSigaba seSigaba seSigaba seSigaba seSigaba seSigaba seSigaba (SPME). Ayisiyo yezicelo zentloko ngqo ngqo.

Ukuqukumbela

Iingcamango ezingakumbi malunga nokukhethwa kweSepta zifuna i-Plus yakho. Ezinye izigqibo malunga nokukhethwa kweSepta zamkelekile.