Video: Dab tsi tuaj yeem sib cais los ntawm daim ntawv chromatography?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim ntawv chromatography yog siv rau sib cais ntawm cov khoom soluble. Cov no feem ntau yog xim xim xws li xim zaub mov, inks, dyes los yog cog pigments.
Ua raws li qhov no hauv kev xav, dab tsi tuaj yeem sib cais los ntawm chromatography?
Sib cais yaj yaj - chromatography . Ntawv chromatography yog ib txoj kev rau sib cais yaj tshuaj los ntawm ib leeg. Nws feem ntau yog siv thaum cov tshuaj yaj yeeb muaj xim, xws li inks, zaub mov xim thiab cov xim dyes. Ib txoj kab xaum yog kos, thiab me ntsis ntawm tus cwj mem los yog cov xim cog rau ntawm nws.
Ib yam li ntawd, yuav ua li cas cov qauv sib cais siv daim ntawv chromatography? Raws li cov dej nkag mus ntawv , cov xim yuav cais tawm mus rau hauv lawv cov khoom. Qhov ntawd yog chromatography hauv kev ua! 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.
Qhov thib ob, qhov piv txwv ntawm daim ntawv chromatography yog dab tsi?
Chromatography yog ib txoj hauv kev rau kev sib cais ntawm qhov sib xyaw ntawm cov roj lossis kua kua uas muaj cov tshuaj sib txawv. Cov theem nyob ruaj ruaj: cov kua lossis cov khoom siv los ntawm cov khoom kuaj tau nqa (kab lim dej ntawv , ntawv phuam yog piv txwv ).
Lub hauv paus ntsiab lus ntawm daim ntawv chromatography yog dab tsi?
Principple of paper chromatography : Cov txoj cai koom nrog yog muab faib chromatography nyob rau hauv cov tshuaj yog muab faib los yog partitioned ntawm cov kua theem. Ib theem yog cov dej, uas yog tuav nyob rau hauv lub pores ntawm lub lim ntawv siv; thiab lwm yam yog lub sij hawm mobile uas txav mus rau lub ntawv.
Pom zoo:
Yuav ua li cas yog daim ntawv cog lus sib txawv ntawm daim ntawv cog lus ionic?
Qhov sib txawv ntawm cov ionic thiab covalent daim ntawv cog lus yog tias covalent daim ntawv cog lus yog tsim thaum ob lub atoms sib koom electrons. Ionic bonds yog lub zog uas tuav ua ke electrostatic zog ntawm kev nyiam ntawm cov ions oppositely them. Ionic bonds muaj qhov sib txawv electronegativity ntau dua lossis sib npaug li 2
Dab tsi yog qhov txawv ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus dissociation zog?
Qhov sib txawv tseem ceeb ntawm kev sib txuas ntawm lub zog thiab lub zog bonddissociation yog tias lub zog sib txuas yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem tag nrho cov kev sib txuas ntawm tib ob hom atoms nyob rau hauv ib qho chaw sib txuas whereas daim ntawv cog lus dissociation zog yog tus nqi ntawm cov hluav taws xob xav tau los rhuav tshem ib qho kev sib koom ua ke inhomolysis
Nyias txheej chromatography txawv ntawm daim ntawv chromatography li cas?
Qhov sib txawv ntawm cov txheej nyias nyias chromatography (TLC) thiab ntawv chromatography (PC) yog tias, thaum lub sij hawm nyob ruaj ruaj hauv PC yog ntawv, cov theem nyob ruaj khov hauv TLC yog txheej nyias ntawm cov khoom siv tsis zoo uas txhawb nqa ntawm lub tiaj tus, tsis muaj zog
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Cov ntaub ntawv dab tsi xav tau rau daim ntawv chromatography?
Daim Ntawv Chromatography ua haujlwm li cas? dej soluble cwj mem los yog cov cim ntawm ntau hom lossis xim. strips ntawm daim ntawv phuam. dej. rubb cawv. ntsia thawv polish remover. straw los yog xaum los yog cwj mem. khob. daim kab xev