Ngaba uyazi kangakanani malunga nokuhlelwa kunye nokukhethwa kwezinto eziphathekayo zeetyhubhu ze-centrifuge?

Iityhubhu ze-Centrifuge:zisetyenziselwa ukuqulatha ulwelo ngexesha le-centrifugation, eyahlula isampuli kumalungu ayo ngokuyijikeleza ngokukhawuleza kwi-axis esisigxina.Ifumaneka ngekepusi yokutywina okanye idlala.Luvavanyo oluqhelekileyo olunokutyiwa kwilabhoratri.

1. Ngokobukhulu bayo

Umthamo omkhulu we-centrifuge tube (500ml, 250ml, ityhubhu ye-centrifuge eqhelekileyo (50ml, 15ml), i-Micro-centrifuge tube (2ml, 1.5ml, 0.65ml, 0.2ml)

2. Ngokwemilo yomzantsi

ityhubhu ye-centrifuge esezantsi, ityhubhu ye-centrifuge esezantsi, ityhubhu ye-centrifuge esezantsi engqukuva

3. Ngokwendlela isiciko sivalwe ngayo

I-Gland centrifuge tube: ityhubhu ye-centrifuge etywinwa ngomatshini wokushicilela, efumaneka rhoqo kwiityhubhu ze-microcentrifuge

Screw cap centrifuge tube: bandakanya iminqwazi ecaba (umphezulu wekepusi usicaba) kunye neminqwazi yeplagi (umphezulu wekepusi unemilo yeplagi)

4. Ngokwemathiriyeli: ityhubhu yeplastiki ye-centrifuge, ityhubhu yeglasi ye-centrifuge, ityhubhu yentsimbi ye-centrifuge

I-1) I-tube ye-steel centrifuge: I-tube ye-centrifuge yensimbi inamandla amakhulu, akukho deformation, ukumelana nobushushu, ukumelana neqhwa kunye nokuxhathisa ukubola kweekhemikhali.Ikwasetyenziswa kakhulu, kodwa kufuneka iphinde iphephe ukudibana neekhemikhali ezomeleleyo ezonakalisayo, ezifana neasidi eyomeleleyo kunye nealkali eyomeleleyo.Zama ukunqanda ukubola kwezi khemikhali

I-2) I-tube ye-Glass centrifuge: Xa usebenzisa iibhubhu zeglasi, amandla e-centrifugal akufanele abe mkhulu kakhulu, kwaye i-rubber pads iyadingeka ukukhusela iityhubhu ukuba zingaphumi.Ngokuqhelekileyo, iibhubhu zeglasi azisetyenziswanga kwi-centrifuges ephezulu.I-cap ye-tube ye-centrifuge ayivalwanga ngokwaneleyo, kwaye i-liquid ayinakuzaliswa (i-centrifuges ephezulu kunye ne-angle rotors isetyenziswa) ukukhusela ukugqithisa kunye nokulahlekelwa kwebhalansi.Isiphumo sokuchithwa kukungcolisa i-rotor kunye negumbi le-centrifugal, elichaphazela ukusebenza okuqhelekileyo kwenzwa.Ngexesha le-ultracentrifugation, ityhubhu ye-centrifuge kufuneka izaliswe ngamanzi, kuba i-ultracentrifugation idinga i-vacuum ephezulu, kwaye ukuzaliswa kuphela kunokuthintela ityhubhu ye-centrifuge ukuba ingabikho.

I-3) I-tube ye-Plastiki ye-centrifuge: Inzuzo ye-tube ye-centrifuge yeplastiki kukuba i-transparent okanye i-translucent, ubunzima bayo buncinci, kwaye isampuli inokukhutshwa ngokubhoboza.Ububi kukuba kulula ukukhubaza, ayinakuxhathisa umhlwa kwizinyibilikisi eziphilayo, kwaye inobomi obufutshane benkonzo.Iityhubhu ze-centrifuge zeplastiki zenziwe ngePP (ipolypropylene), i-PC (i-polycarbonate), i-PE (i-polyethylene) kunye nezinye izinto.Ukusebenza kombhobho wePP kubhetele noko.Ityhubhu yeplastiki ye-centrifuge iyabonakala okanye iguquguqukayo, kwaye i-centrifugation yesampulu inokubonwa ngokuzenzekelayo, kodwa kulula ukukhubaza kwaye inokumelana nokungahambi kakuhle kwe-corrosion kwi-solvents eziphilayo, ngoko ubomi benkonzo bufutshane.

Oku kulandelayo yintshayelelo emfutshane kumbandela ngamnye:

I-PP (ipolypropylene): i-translucent, enekhemikhali elungileyo kunye nokuzinza kweqondo lobushushu, kodwa iya kuba brittle kubushushu obuphantsi, ngoko musa i-centrifuge ngaphantsi kwe-4 ° C.

I-PC (i-polycarbonate): ukubonakala kakuhle, ubunzima obuphezulu, inokucolwa kwiqondo lobushushu eliphezulu, kodwa ingaxhathisi kwi-asidi eyomeleleyo kunye ne-alkali kunye nezinye izinyibilikisi eziphilayo ezifana notywala.Isetyenziswa ikakhulu kwi-ultra-high-speed centrifugation ngaphezulu kwe-50,000 rpm.

I-PE (i-polyethylene): i-opaque.Ayinakusabela nge-acetone, i-acetic acid, i-hydrochloric acid, njl. Izinzile kwaye ijwayele ukuthambisa kumaqondo aphezulu.

I-PA (i-polyamide): Le nto i-polymer eyenziwe nge-PP kunye ne-PE, i-translucent, izinzile kakhulu kwiimpawu zeekhemikhali, kodwa ayinakumelana nokushisa okuphezulu.

I-PS (i-polystyrene): i-transparent, i-hard, izinzile kwizisombululo ezininzi zamanzi, kodwa ziya kugqwaliswa yizinto ezahlukeneyo zezinto eziphilayo, ezisetyenziselwa i-centrifugation ephantsi, kwaye isetyenziselwa ukusetyenziswa kwexesha elilodwa.

PF (i-polyfluorine): i-translucent, ingasetyenziselwa kwiqondo lokushisa eliphantsi, ukuba indawo yovavanyo yi-100 ℃ -140 ℃, ungasebenzisa ityhubhu ye-centrifuge eyenziwe ngolu hlobo.

I-CAB (i-Cellulose Butyl Acetate): i-transparent, ingasetyenziselwa ukuzimisela kwe-gradient ye-dilute acids, i-alkalis, i-salts, i-alcohol, kunye ne-sucrose.