Alumina siv ntau zaus hauv kab chromatography dua li nws nyob hauv TLC. Alumina yog qhov rhiab heev rau cov dej uas khi rau nws: qhov siab dua nws cov dej ntsiab lus, qhov tsawg dua qhov chaw nws yuav tsum khi cov organic tebchaw, thiab yog li tsawg "nqa" nws yog.
Lub hom phiaj ntawm alumina kem yog dab tsi?
Alumina yog qhov yooj yim me ntsis, yog li yuav khaws cov tshuaj acidic ntau dua. Nws yog zoo rau kev sib cais ntawm cov khoom uas tsis muaj zog lossis nruab nrab ntawm lub ncov qaumteb qabteb thiab kev ua kom huv ntawm aminesAbsorbent particle loj cuam tshuam li cas cov kuab tshuaj ntws los ntawm kab. Silica lossis alumina yog ob qho tib si muaj nyob rau hauv ntau qhov ntau thiab tsawg.
Alumina yog dab tsi thiab nws ua dab tsi thaum lub sij hawm kem chromatography?
Alumina yog polar kem chromatography adsorbent thiab yuav muab kev sib cais los ntawm kev sib cuam tshuam ntawm polar… adsorbent subtypes thiab yog li lawv tau siv rau kev sib cais ntawm ntau hom sib xyaw.
Cov kuab tshuaj dab tsi yog siv hauv kab chromatography?
Flash kem chromatography feem ntau yog ua los ntawm kev sib xyaw ntawm ob lub kuab tshuaj, nrog lub ncov qaumteb qabteb thiab cov khoom tsis muaj polar. Qee zaum, tsuas yog ib qho hnyav tuaj yeem siv tau. Qhov tsim nyog tsuas yog ib qho ntawm cov kuab tshuaj uas tsim nyog (tso npe los ntawm qhov tsawg tshaj plaws polar mus rau lub polar feem ntau): Hydrocarbons: pentane, roj av ether, hexanes
Alumina siv rau dab tsi?
Alumina (Aluminium Oxide) yog cov khoom siv oxide ceramic feem ntau siv. Nws cov ntawv thov tau dav, thiab suav nrog cov ntsaws ntsaws, kais ntxhua khaub ncaws, cov vuas tiv thaiv kev puas tsuaj, thiab cov cuab yeej txiav Tonnages loj heev kuj tseem siv rau hauv kev tsim cov monolithic thiab cib refractories.
Different Adsorbent (Silica, Alumina, Magnesia, Charcoal, cellulose) used in Column chromatography
