lub centrifuge cais cov khoom li cas
Lub Centrifuge cais cov khoom li cas?
Kev Taw Qhia:
Lub centrifuge yog ib lub cuab yeej siv hauv chav kuaj mob uas muaj zog heev uas ua lub luag haujlwm tseem ceeb hauv kev cais ntau yam khoom ntawm cov qauv los ntawm kev siv lub zog centrifugal. Lub zog no yog tsim los ntawm kev tig ceev ceev ntawm lub centrifuge, ua rau muaj kev sib cais cov khoom ntawm ntau qhov sib txawv lossis qhov loj me ntawm cov khoom me me. Hauv tsab xov xwm no, peb yuav tshawb nrhiav cov txheej txheem sab hauv ntawm lub centrifuge thiab nkag mus rau hauv cov hau kev uas nws cais cov khoom tau zoo. Peb kuj tseem yuav tham txog kev siv centrifugation hauv ntau qhov chaw, xws li kev kuaj mob mus rau cov txheej txheem kev lag luam.
I. Kev Nkag Siab Txog Kev Siv Centrifugation:
Kev centrifugation yog ib qho txheej txheem uas siv lub hauv paus ntsiab lus ntawm kev tso dej, siv lub zog uas lub centrifuge tig los. Lub zog no thawb cov khoom me me lossis cov khoom me me mus rau hauv qab ntawm lub raj xa dej, thaum cov khoom sib dua tseem nyob rau sab saum toj. Hauv cov lus yooj yim dua, lub centrifuge ua haujlwm zoo li lub tsheb kauj vab uas tig ceev ceev, cais cov khoom hauv cov qauv raws li lawv qhov ceev.
II. Kev Ua Haujlwm ntawm Lub Centrifuge:
A. Lub Centrifuge's Rotor Assembly:
Lub centrifuge lub rotor sib dhos yog ib qho tseem ceeb uas ua rau muaj kev sib hloov ceev ceev thaum lub sijhawm sib cais. Nws muaj lub spindle, cov raj xa dej kuaj, thiab cov thoob lossis cov tuav tshwj xeeb. Qhov ceev ntawm kev sib hloov tuaj yeem ncav cuag ntau txhiab qhov kev sib hloov ib feeb (rpm), tsim kom muaj lub zog centrifugal tsim nyog.
B. Lub zog centrifugal:
Thaum lub rotor pib tig, nws tsim lub zog centrifugal uas rub cov tshuaj tawm ntawm qhov chaw nruab nrab ntawm kev tig. Lub zog centrifugal no yog lub luag haujlwm rau cov txheej txheem sib cais.
III. Ntau Hom Centrifuges:
A. Cov Centrifuges Npaj:
Cov tshuab centrifuges uas npaj tau yog tsim los cais cov qauv loj dua. Lawv feem ntau siv rau hauv cov chaw soj ntsuam thiab cov lag luam tshuaj rau kev sib cais thiab ntxuav ntau yam. Lub peev xwm ntawm lub raj centrifuge hauv cov qauv no loj dua, ua rau kev ua cov qauv loj.
B. Cov Centrifuges Tshawb Fawb:
Cov tshuab centrifuges uas siv los ntsuas cov khoom me me xwb, feem ntau yog siv rau kev ntsuas cov khoom me me xwb. Cov tshuab centrifuges no ua haujlwm ceev dua, ua rau muaj kev sib cais thiab kev faib ua feem ntau dua.
IV. Cov txheej txheem sib cais:
A. Kev Sib Tw Centrifugation Sib Txawv:
Kev sib txawv centrifugation yog ib txoj kev siv uas siv cov khoom sib txawv los cais lawv. Los ntawm kev kho qhov ceev thiab lub sijhawm ntawm cov txheej txheem centrifugation, cov khoom uas muaj ntau qhov sib txawv yuav nyob rau ntawm ntau qhov chaw hauv lub raj xa dej. Cov khoom ntom dua sib sau ua ke hauv qab, thaum cov khoom sib dua tsim cov txheej sib txawv saum toj no.
B. Kev Siv Centrifugation Gradient Density:
Hauv kev siv lub tshuab centrifugation uas muaj qhov ceev sib txawv, qhov ceev sib txawv ntawm kev nce lossis txo qhov ceev yog tsim nyob rau hauv lub raj centrifuge. Los ntawm kev siv lub zog centrifugal, cov khoom ntawm cov qauv yuav txav mus rau qhov chaw tshwj xeeb hauv qhov ceev sib txawv raws li lawv qhov ceev sib txawv. Cov txheej txheem no zoo tagnrho rau kev sib cais cov khoom me me, cov biomolecules, thiab cov organelles uas muaj qhov sib txawv me me hauv qhov ceev.
V. Cov ntawv thov ntawm Centrifugation:
A. Kev Kuaj Mob thiab Kev Kho Mob:
Kev siv lub tshuab centrifugation ua lub luag haujlwm tseem ceeb hauv kev kuaj mob thiab kev kho mob. Nws yog siv rau kev tshuaj xyuas cov qauv ntshav, xws li kev cais cov plasma lossis serum ntawm cov ntshav tag nrho thiab kev cais cov khoom tshwj xeeb ntawm cov ntshav xws li cov qe ntshav liab thiab cov qe ntshav dawb lossis cov platelets. Nws kuj tseem siv rau hauv cov chaw kuaj mob microbiology los cais cov kab mob lossis lwm yam kab mob me me ntawm cov kab lis kev cai.
B. Kev Lag Luam Khoom Noj thiab Dej Haus:
Kev siv centrifugation dav dav hauv kev lag luam khoom noj thiab dej haus rau ntau lub hom phiaj, suav nrog kev sib cais cov mis nyuj qab zib ntawm mis nyuj, kev ua kom cov kua txiv hmab txiv ntoo ntshiab, thiab kev sib cais cov av tawm ntawm cawv lossis npias, muab kev tswj hwm zoo thiab txhim kho lub sijhawm txee khoom.
C. Kev Tshuaj Xyuas Ib Puag Ncig:
Hauv kev tshuaj xyuas ib puag ncig, centrifugation siv rau kev sib cais cov pa phem, cov av noo, thiab cov kab mob me me. Los ntawm kev cais cov tshuaj uas xav tau, cov kws tshawb fawb tuaj yeem tshuaj xyuas thiab txheeb xyuas cov pa phem, saib xyuas qhov zoo ntawm dej, thiab ntsuas qhov txaus ntshai thiab kev cuam tshuam rau ib puag ncig.
D. Cov Txheej Txheem Kev Lag Luam:
Ntau yam txheej txheem kev lag luam, xws li kev ua roj, kev kho dej khib nyiab, thiab kev tsim tshuaj, vam khom kev centrifugation rau kev sib cais thiab kev ntxuav. Kev sib cais cov khoom tsis huv, rov qab tau cov khoom muaj nqis, thiab kev ua kom ntseeg tau tias cov khoom kawg ua haujlwm tau zoo thiab huv si yog cov yam tseem ceeb ntawm cov ntawv thov no.
E. Kev Tshawb Fawb thiab Kev Txhim Kho:
Thaum kawg, centrifugation yog ib qho cuab yeej tseem ceeb uas siv rau hauv ntau qhov kev tshawb fawb thiab kev txhim kho. Nws cov kev siv ntau yam los ntawm kev cais DNA, RNA, lossis cov protein hauv kev tshawb fawb txog noob caj noob ces, kawm txog cov cell organelles, thiab npaj cov qauv rau kev tshuaj xyuas electron microscopy thiab lwm yam.
Xaus lus:
Kev siv centrifugation, nrog nws lub peev xwm los cais cov khoom raws li lawv qhov ceev, yog ib txoj kev siv tseem ceeb hauv ntau qhov chaw. Txij li kev kuaj mob mus rau cov txheej txheem kev lag luam, lub zog tig ntawm lub centrifuge ua lub luag haujlwm tseem ceeb hauv kev cais cov khoom sib txawv rau kev tshuaj xyuas, kev ntxuav, thiab kev tswj xyuas zoo. Nrog kev nce qib tas mus li hauv thev naus laus zis thiab kev ua haujlwm ntau ntxiv, centrifuges tau dhau los ua qhov tseeb dua thiab txhim khu kev qha, qhib cov hauv kev tshiab rau kev tshawb pom kev tshawb fawb thiab kev nce qib hauv kev lag luam.
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