Video: Yuav ua li cas chromatography cais cov sib tov?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chromatography yog ua tau ib txoj kev sib cais tawm a sib tov ntawm cov tshuaj, uas yog nyob rau hauv cov roj los yog kua daim ntawv, los ntawm kev cia lawv nkag mus maj mam dhau los ntawm lwm yam khoom, uas feem ntau yog ib tug kua los yog khoom. Raws li cov theem mobile txav, nws cais tawm mus rau hauv nws cov khoom nyob rau theem nyob ruaj khov.
Ua raws li qhov xav tau, daim ntawv chromatography cais cov sib tov li cas?
Daim ntawv chromatography yog ib txoj kev rau sib cais yaj tshuaj los ntawm ib leeg. Nws ua haujlwm vim tias qee cov xim xim yaj hauv cov kuab tshuaj siv tau zoo dua li lwm tus, yog li lawv taug kev ntxiv mus ntawv . Ib kab xaum yog kos, thiab me ntsis ntawm tus number case los yog cog dye yog muab tso rau ntawm nws.
Tom qab ntawd, lo lus nug yog, daim ntawv chromatography ua haujlwm li cas? Chromatography yog ib txoj hauv kev sib cais cov sib tov los ntawm kev siv cov kuab tshuaj txav ntawm cov lim ntawv . Ib qho kev sib tov sib xyaw yog pom nyob ze ntawm ib kawg ntawm qhov ntawv thiab ces qhuav. Qhov kawg ntawm ntawv , nyob ze ntawm qhov chaw, ces dipped rau hauv cov kuab tshuaj yam tsis tau submerging qhov chaw nws tus kheej.
Ib sab saum toj no, dab tsi yog txheej txheem ntawm chromatography?
Chromatography yog ib qho kev sib cais ntawm lub cev uas faib cov khoom sib cais ntawm ob theem, ib qho chaw nyob ruaj khov (stationary phase), lwm qhov (theem mobile) txav mus rau qhov tseeb. Lub eluate yog theem mobile tawm hauv kab. Lub eluent yog cov kuab tshuaj uas nqa cov analytes.
Vim li cas cov xim sib cais hauv daim ntawv chromatography?
Raws li cov dej nkag mus ntawv , cov xim yuav cais tawm mus rau hauv lawv cov khoom. Capillary kev txiav txim ua rau cov kuab tshuaj mus txog qhov ntawv , qhov twg nws ntsib thiab dissolves tus number case. Cov kua nplaum yaj (theem mobile) maj mam taug kev mus ntawv (cov theem nyob ruaj ruaj) thiab cais tawm mus rau hauv cov khoom sib txawv.
Pom zoo:
Koj yuav ua li cas cais ib qho khoom thiab sib tov?
Cov ntsiab lus sib xyaw tuaj yeem sib cais siv ntau hom kev kawm. Chromatography suav nrog kev sib cais hnyav ntawm cov khoom nruab nrab. Distillation siv qhov zoo ntawm qhov sib txawv ntawm cov ntsiab lus kub. Evaporation tshem tawm cov kua los ntawm kev daws kom tawm hauv cov khoom siv. Lim cais cov khib nyiab ntawm qhov sib txawv
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
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Vim li cas chromatography siv los cais cov sib tov?
Daim ntawv chromatography yog ib txoj hauv kev cais cov tshuaj yaj los ntawm ib leeg. Nws ua haujlwm vim tias qee cov xim xim yaj nyob rau hauv cov kuab tshuaj zoo dua li lwm tus, yog li lawv mus ntxiv rau hauv daim ntawv. Ib txoj kab xaum yog kos, thiab me ntsis ntawm tus cwj mem lossis cov xim cog rau ntawm nws