lub centrifuge cais cov ntaub ntawv li cas
Lub Centrifuge cais cov khoom li cas?
Kev Taw Qhia:
Cov centrifuges yog cov cuab yeej siv tshawb fawb muaj zog thiab tseem ceeb uas siv rau ntau qhov chaw, xws li chaw kuaj mob, chaw tshawb fawb, thiab cov txheej txheem kev lag luam. Lawv ua lub luag haujlwm tseem ceeb hauv kev sib cais cov khoom sib txawv raws li lawv qhov loj me, qhov ceev, thiab lwm yam khoom siv lub cev. Hauv tsab xov xwm no, peb yuav nkag mus rau hauv lub ntiaj teb zoo kawg nkaus ntawm centrifugation thiab tshawb nrhiav ntau yam txheej txheem uas centrifuges siv los cais cov khoom zoo.
I. Lub Ntsiab Cai ntawm Centrifugation:
Kev centrifugation yog raws li lub hauv paus ntsiab lus ntawm kev tso dej, uas siv qhov sib txawv ntawm qhov ceev ntawm cov khoom me me. Thaum muab cov khoom sib tov tso rau hauv lub centrifuge thiab tig ntawm qhov ceev siab, lub zog centrifugal ua rau cov khoom me me txav mus rau sab nraud, thaum cov khoom me me sib dua feem ntau nyob hauv nruab nrab. Qhov kev sib cais no tso cai rau kev tshuaj xyuas ntxiv thiab kev cais cov khoom xav tau.
II. Cov Cheebtsam Centrifuge:
1. Rotor Sib Dhos:
Ib qho tseem ceeb ntawm txhua lub centrifuge yog lub rotor sib dhos, uas yog lub luag haujlwm rau kev tuav cov qauv thiab ua rau lawv tig ceev heev. Cov rotors muaj ntau yam qauv tsim, xws li lub kaum sab xis ruaj khov, lub thoob swinging, thiab cov rotors ntsug, txhua tus haum rau ntau yam kev xav tau sib cais.
2. Cov raj centrifuge:
Cov raj centrifuge, feem ntau yog ua los ntawm cov khoom zoo xws li polypropylene lossis iav, tuav cov qauv thaum lub sijhawm centrifuge. Cov raj no raug xaiv ua tib zoo raws li lawv qhov sib xws nrog qhov ceev, qhov kub, thiab cov txheej txheem sib cais xav tau.
III. Kev Sib Nqus Centrifugation:
Kev sib txawv centrifugation yog ib txoj kev siv dav dav los cais cov khoom sib txawv ntawm qhov loj me. Lub hauv paus ntsiab lus tom qab txoj kev no yog nyob rau hauv kev hloov pauv lub sijhawm thiab qhov ceev ntawm cov txheej txheem centrifugation. Los ntawm kev siv cov kauj ruam centrifugation sib law liag ntawm qhov ceev sib txawv, cov khoom me me tuaj yeem raug faib ua ntau feem sib txawv raws li lawv cov nqi sedimentation. Cov khoom hnyav dua tuaj yeem daws sai dua thiab tuaj yeem sib cais los ntawm cov sib dua hauv kev khiav tom ntej.
IV. Kev Ntsuas Qhov Ceev ntawm Kev Centrifugation:
1. Lub Ntsiab Cai:
Kev centrifugation gradient density yog ib txoj kev siv zog uas siv qhov sib txawv ntawm qhov ceev ntawm cov khoom me me los ua kom sib cais. Los ntawm kev siv cov tshuaj uas muaj qhov ceev gradient tas mus li, cov khoom me me ntawm ntau qhov ceev tuaj yeem muab tso rau ntawm qhov chaw sib txawv hauv lub raj thaum lub sijhawm centrifugation.
2. Kev Siv Centrifugation Isopycnic:
Hauv isopycnic centrifugation, tseem hu ua equilibrium sedimentation, lub zog centrifugal raug kho kom sib npaug lub zog buoyant ua rau cov khoom me me. Yog li ntawd, cov khoom me me mus txog qhov chaw tshwj xeeb hauv qhov gradient qhov twg lawv qhov ceev yog sib npaug rau qhov ntawm cov khoom ib puag ncig. Cov txheej txheem no tso cai rau kev sib cais ntawm cov khoom siv raws li lawv cov buoyant densities.
3. Kev Centrifugation Hauv Cheeb Tsam:
Kev sib xyaw ua ke ntawm tus nqi thiab thaj chaw vam khom qhov sib txawv ntawm cov nqi sedimentation los cais cov khoom. Ib qho kev hloov pauv ntawm qhov ceev tau tsim, tab sis es tsis txhob mus txog qhov sib npaug, cov khoom me me txav mus los ntawm qhov sib txawv kom txog thaum lawv mus txog lawv qhov chaw sib npaug ntawm cov sedimentation. Cov txheej txheem no ua rau kev sib cais ntawm cov khoom raws li qhov ceev thiab qhov loj me.
V. Cov ntawv thov ntawm Centrifugation:
1. Chaw Kuaj Mob thiab Chaw Kho Mob:
Cov tshuab centrifuges siv dav hauv cov chaw kuaj mob thiab chaw kuaj mob rau kev kuaj mob. Lawv pab cais cov khoom ntawm cov ntshav, xws li cov qe ntshav liab, cov qe ntshav dawb, thiab cov plasma, uas yog qhov tseem ceeb rau ntau yam kev kuaj mob, suav nrog kev suav cov ntshav tag nrho, kev tshuaj xyuas cov tshuaj lom neeg hauv cov ntshav, thiab kev kuaj pom cov kab mob sib kis.
2. Kev Lag Luam Tshuaj:
Kev siv lub tshuab centrifugation ua lub luag haujlwm tseem ceeb hauv kev lag luam tshuaj, tshwj xeeb tshaj yog hauv kev ntxuav thiab sib cais cov tshuaj kho mob, cov cell, thiab cov biomolecules. Nws ua rau muaj kev rho tawm cov tshuaj ntshiab thiab pab txhawb cov txheej txheem txuas ntxiv xws li crystallization, filtration, thiab chromatography.
3. Kev Tshawb Fawb Txog Biotechnology Thiab Genetic:
Cov centrifuges yog cov cuab yeej tseem ceeb hauv biotechnology thiab kev tshawb fawb txog noob caj noob ces. Lawv siv rau kev cais DNA, RNA, thiab cov protein ntawm cov cell, nrog rau kev ntxuav cov recombinant protein thiab kawm txog cov organelles cellular. Ntxiv mus, lawv pab txhawb kev cais thiab kev tshuaj xyuas cov khoom subcellular, xws li mitochondria thiab nuclei.
4. Kev Tshawb Fawb Txog Ib Puag Ncig:
Cov centrifuges nrhiav tau cov ntawv thov hauv kev tshawb fawb ib puag ncig rau kev kawm txog cov pa phem, kev tshuaj xyuas cov av noo, kev ntxuav dej, thiab kev saib xyuas ntau yam qauv kab mob, suav nrog cov kab mob me me, algae, thiab cov pa phem uas muaj nyob hauv dej, av, thiab huab cua.
Xaus lus:
Cov centrifuges yog cov cuab yeej zoo kawg uas siv cov ntsiab cai ntawm kev tso dej thiab lub zog centrifugal los cais cov khoom siv kom zoo. Txawm hais tias nws yog nyob rau hauv kev kho mob, kev lag luam tshuaj, lossis kev tshawb fawb, centrifugation pab tau kom tau txais cov khoom huv dua, cais cov khoom muaj nqis, thiab tshuaj xyuas cov qauv nrog kev raug. Los ntawm kev sib txawv centrifugation mus rau qhov ceev gradient centrifugation, cov cuab yeej no tau hloov pauv ntau yam kev tshawb fawb thiab txuas ntxiv mus ua cov khoom muaj nqis hauv kev txhim kho peb txoj kev nkag siab txog lub ntiaj teb nyob ib puag ncig peb.
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