Cov txheej txheem:
Video: Cov ntaub ntawv dab tsi xav tau rau daim ntawv chromatography?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Daim Ntawv Chromatography ua haujlwm li cas?
- dej soluble cwjmem lossis cov cim ntawm ntau hom lossis xim.
- strips ntawm daim ntawv phuam .
- dej .
- rubb cawv.
- ntsia thawv polish remover.
- straw lub xaum los yog cwj mem.
- khob.
- daim kab xev.
Hais txog qhov no, kuv tuaj yeem siv dab tsi los hloov cov ntawv chromatography?
Chromatography yuav tsum muaj ib theem nyob ruaj ruaj li animmovable platform uas lub mobile theem - cov dej los yog othersolvent nqa cov sib tov yuav tsum tau sib cais - tsiv mus. Porous tsev neeg cov ntawv nyiam ntawv phuam da dej thiab coffeefilters ua ib qho pheej yig hloov rau chromatography ntawv.
Ib tug kuj yuav nug, dab tsi hnyav yog siv hauv ntawv chromatography thiab nws ua haujlwm li cas? Feem ntau koj muab ib qho chaw ntawm tus cwj mem ze ntawm ib ntug ntawm somefilter ntawv thiab ces dai lub ntawv vertically nrog nws sab ntug (ze ntawm qhov chaw) dipped nyob rau hauv a kuab tshuaj xws li cawv lossis dej. Capillary kev ua ua tus kuab tshuaj taug kev mus ntawv , qhov twg nws ntsib thiab dissolves tus number case.
Tsuas yog li ntawd, cov kuab tshuaj twg yog siv hauv daim ntawv chromatography?
Npaj muaj cov kuab tshuaj rau daim ntawv Chromatography
| Solvent | Polarity (qhov ntsuas qhov ntsuas ntawm 1-5) | Kev tsim nyog |
|---|---|---|
| Dej | 1 - Feem ntau cov polar | Zoo |
| Rubbing cawv (ethyl type) lossis denatured cawv | 2 - Siab polarity | Zoo |
| Rubbing cawv (isopropyl hom) | 3 - Nruab nrab polarity | Zoo |
| Vinegar | 3 - Nruab nrab polarity | Zoo |
Lub hom phiaj ntawm daim ntawv chromatography yog dab tsi?
Cov lub hom phiaj ntawm chromatography nyob rau hauv generalis kom cais cov molecules raws li qhov sib txawv ntawm qhov loj me, them orpolarity, thiab solubility. Daim ntawv chromatography yog nodifferent; nws siv ntawv raws li cov theem nyob ruaj ruaj thiab asolvent raws li lub sij hawm mobile.
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