Video: Nyias txheej chromatography txawv ntawm daim ntawv chromatography li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov yooj yim txawv nruab nrab nyias txheej chromatography ( TLC ) thiab ntawv chromatography (PC) yog qhov ntawd, thaum lub sijhawm nyob ruaj khov hauv PC yog ntawv , nyob ruaj khov theem nyob rau hauv TLC yog a nyias txheej ntawm ib qho inert tshuaj txhawb rau ntawm lub tiaj tus, unreactive nto.
Hais txog qhov no, qhov sib txawv ntawm cov txheej nyias nyias chromatography thiab daim ntawv chromatography yog dab tsi?
Daim ntawv chromatography yuav tsum tau npaj tsawg dua whereas nyias txheej chromatography yuav tsum tau npaj ntau lub sij hawm. Qhov chaw nres tsheb theem ntawm ntawv chromatography yog cov dej daig hauv cellulose lim ntawv . Nyias - txheej chromatography ua rau kev siv silica gel whereas ntawv chromatography tsis.
txheej nyias nyias chromatography yog dab tsi thiab nws ua haujlwm li cas? Nyias - txheej chromatography ( TLC ) yog a chromatography txheej txheem siv los cais cov tsis-volatile sib tov. Tom qab cov qauv tau siv rau ntawm lub phaj, cov kuab tshuaj los yog cov kuab tshuaj sib tov (lub npe hu ua lub sijhawm txawb) yog kos rau ntawm lub phaj ntawm capillary nkaus.
Hais txog qhov no, dab tsi yog qhov zoo ntawm nyias txheej chromatography piv rau daim ntawv chromatography?
Cov cellulose ntawv kev txhawb nqa hauv ntawv chromatography yog hloov tau thaum lub adsorbent nyob rau hauv TLC yog coated mus rau ib tug nruj hlau, iav los yog yas phaj. Qhov no pab txhawb rau kev rov tsim dua ntawm cov pob qij txha thiab kev loj hlob sai. Vim yog kev txhawb nqa rigidity muaj tsawg dua diffusion thiab vim li ntawd, cov ntsiab lus zoo tau tsim.
Yam dab tsi cuam tshuam rau daim ntawv chromatography?
Khaws cia yam muaj nuj nqis nyob rau hauv nyias txheej chromatography cuam tshuam los ntawm absorbent, hnyav, lub chromatography phaj nws tus kheej, daim ntawv thov txheej txheem thiab qhov kub thiab txias ntawm cov kuab tshuaj thiab phaj.
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