Qhov sib txawv tseem ceeb ntawm supernatant thiab precipitate yog tias supernatant nyob rau hauv cov kua, whereas precipitate yog nyob rau hauv cov khoom.
Centrifugation yog ib qho kev tshuaj ntsuam xyuas uas peb siv los cais cov khoom ntawm cov tshuaj. Kev sib cais tuaj yeem ua tau raws li qhov loj me, cov duab, ntom lossis viscosity ntawm cov khoom no. Nyob rau hauv cov txheej txheem no, peb yuav tsum tau npaj lub ncua kev kawm ntawv thiab muab tso rau hauv ib tug centrifuge raj, uas yog muab tso rau ntawm ib tug rotor kom nws tig ntawm ib tug tshwj xeeb ceev. Thaum kawg ntawm cov txheej txheem, cov khoom yuav tsim ib qho precipitate nyob rau hauv qab ntawm lub centrifuge raj thaum lub tom kawg tseem yog ib tug supernatant.
Dab tsi yog Supernatant?
Lub supernatant yog cov kua peb tuaj yeem soj ntsuam saum cov dej nag. Qee zaum, peb hu nws ua supernate thiab. Cov tswv yim uas peb tuaj yeem nrhiav tau lub sij hawm supernatant yog centrifugation, nag lossis daus, crystallization, thiab lwm yam.
Daim duab 01: Qhov kawg tshwm sim ntawm cov txheej txheem centrifugation
Feem ntau, daim ntawv kua no yog translucent. Tsis tas li ntawd, peb tuaj yeem siv lo lus no los sau cov kua dej uas nyob saum cov sediments thiab. Kev sib cais ntawm cov supernatant los ntawm supernate-precipitate sib tov yog hu ua decantation.
Dab tsi yog Precipitate?
Cov nag lossis daus yog cov khoom siv uas tso rau hauv kev daws teeb meem. Nws tso rau hauv qab ntawm lub thawv vim nws yog insoluble hauv cov tshuaj. Lub precipitate tuaj yeem tsim nyob rau hauv ntau txoj kev: los ntawm cov tshuaj tiv thaiv ntawm ob lub ntsev, los ntawm kev hloov qhov kub ntawm cov tshuaj, los ntawm centrifugation, thiab lwm yam. Txawm li cas los xij, lub sij hawm precipitate txawv ntawm lub sij hawm precipitant; precipitate yog cov khoom uas tsim los ntawm nag lossis daus cov tshuaj tiv thaiv thaum nag lossis daus yog cov tshuaj lom neeg uas ua rau muaj nag lossis daus los ua.
Daim duab 02: Copper(I) Chloride Precipitate
Nws muaj peb txoj hauv kev loj los cais cov dej nag los ntawm cov tshuaj: pom, centrifugation, thiab decantation. Hauv cov txheej txheem pom, peb tuaj yeem lim cov dej nag los siv cov ntaub ntawv lim lossis lub tshuab nqus tsev kom cais cov kua dej. Hauv centrifugation, kev sib hloov ceev ua rau cov khoom raug tshem tawm los ua ib qho precipitate hauv qab ntawm lub thawv. Txawm li cas los xij, hauv cov txheej txheem decantation, peb ua dab tsi yog nchuav lossis nqus cov kua tawm ntawm cov nag lossis daus.
Kev sib raug zoo ntawm Supernatant thiab Precipitate yog dab tsi?
Supernatant thiab nag lossis daus yog ob nqe lus ntsig txog. Txawm nyob qhov twg daim ntawv supernatant, nag los kuj ua
Qhov txawv ntawm Supernatant thiab Precipitate yog dab tsi?
Qhov sib txawv tseem ceeb ntawm supernatant thiab precipitate yog tias cov supernatant nyob rau hauv cov kua, whereas precipitate yog nyob rau hauv cov ntaub ntawv. Supernatant cov ntaub ntawv saum toj no los nag los yog sediment thaum cov ntaub ntawv precipitate nyob hauv qab ntawm lub thawv. Ntxiv mus, thaum xav txog qhov ua rau tsim, supernatant cov ntaub ntawv thaum lub sij hawm centrifugation, crystallization, nag lossis daus, thiab lwm yam thaum lub precipitate cov ntaub ntawv los ntawm cov tshuaj tiv thaiv ntawm ob ntsev, los ntawm kev hloov qhov kub ntawm ib tug tov, los ntawm centrifugation, thiab lwm yam.
Dhau li, qhov sib txawv ntxiv ntawm supernatant thiab precipitate yog tias peb cais cov supernatant feem ntau ntawm decantation, whereas peb tuaj yeem cais cov precipitate los ntawm cov tshuaj tiv thaiv sib tov siv pom, decantation, thiab centrifugation.
Summary – Supernatant vs Precipitate
Nyob rau hauv cov ntsiab lus, lub supernatant thiab nag lossis daus yog ob nqe lus hais txog. Txawm nyob qhov twg daim ntawv supernatant, ib tug precipitate kuj tsim. Txawm li cas los xij, qhov sib txawv tseem ceeb ntawm supernatant thiab precipitate yog cov supernatant nyob rau hauv cov kua, whereas precipitate yog nyob rau hauv daim ntawv.
