Video: Yuav siv txoj kev twg los cais cov khoom ntawm tus number case?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chromatography yog ib txoj hauv kev los tshuaj xyuas cov khoom sib tov los ntawm kev sib cais rau hauv cov tshuaj uas lawv tau tsim. Nws tuaj yeem siv los cais cov khoom sib xyaw xws li tus cwj mem, ntshav, roj av, thiab daim di ncauj. Hauv tus cwj mem chromatography , koj cais cov xim pigments uas ua rau cov xim ntawm tus cwj mem.
Tsuas yog li ntawd, koj yuav ua li cas cais cov khoom ntawm tus number case?
Los ntawm submersion ntawm chromatography ntawv rau hauv dej, ib qho qauv ntawm tus cwj mem tuaj yeem yog cais nyob rau hauv nws cov cyan, magenta, thiab daj cov khoom . Cov dej ua rau cov tus cwj mem molecules rau "mus ncig" nce daim ntawv strip.
Tom qab ntawd, lo lus nug yog, hom chromatography feem ntau yog siv los cais cov khoom ntawm inks? Cov kua yuav ua tau cais los ntawm High Performance kua Chromatography (HPLC), thaum lub cov khoom yog gases cais los ntawm Gas Chromatography . Chromatography yog ib txoj hauv kev los tshuaj xyuas cov sib tov sib xyaw (xws li tus cwj mem ) los ntawm kev cais lawv mus rau hauv cov tshuaj uas lawv tau ua.
Tom qab ntawd, ib tus tuaj yeem nug, koj yuav cais cov khoom ntawm tus cwj mem siv chromatography li cas?
Thaum koj tso chromatography daim ntawv rau hauv ib qho hnyav, qhov hnyav pib txav mus rau hauv daim ntawv. Raws li qhov hnyav nce, nws dissolves lub tus cwj mem ntawm daim ntawv thiab cais cov tus cwj mem hauv nws cov khoom . Qhov deb ntawm tus cwj mem mus ncig, qhov ntau nws yog attracted rau cov kuab tshuaj.
Dab tsi yog cov yam ntxwv ntawm tus number case?
Ink tuaj yeem yog qhov nruab nrab, muaj cov kuab tshuaj, cov xim, cov xim, cov resins, lubricants, solubilizers, surfactants, particulate matter, fluorescents, thiab lwm yam ntaub ntawv.
Pom zoo:
Yuav siv txoj hauv kev twg los txiav txim qhov purity ntawm txhua yam ntawm koj cov khoom uas tau rov qab los?
Cov txheej txheem tshuaj yooj yim tshaj plaws suav nrog gravimetry thiab titration. Kuj tseem muaj ntau txoj kev teeb pom kev zoo los yog spectroscopic, xws li UV-VIS spectroscopy, nuclear magnetic resonance thiab infrared spectroscopy. Cov txheej txheem chromatographic, xws li roj chromatography thiab kua chromatography, kuj tseem siv tau
Plaub txoj kev cais cov kua los ntawm cov khoom yog dab tsi?
Hauv qab no yog qee txoj kev sib cais: Ntawv Chromatography. Txoj kev no feem ntau siv hauv kev lag luam khoom noj. Lim. Qhov no yog ib txoj kev ntau dua ntawm kev sib cais cov khoom insoluble los ntawm cov kua. Evaporation. Yooj yim distillation. Fractional distillation
Yuav ua li cas koj cais ib tug sib tov ntawm pigments los ntawm ib tug number case cartridge?
Txhawm rau cais qhov sib xyaw ntawm cov xim uas yog ob lub dyes, daim ntawv chromatography yog siv. Ib feem me me ntawm qhov sib tov yog muab tso rau hauv cov khoom siv absorbent, ib daim ntawv lim, nrog cov kuab tshuaj. Ob lub dyes yuav txav mus rau nyias thiab tus number case yuav sib cais rau hauv nws cov khoom ntshiab
Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2)
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus