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Cov yam ntxwv thiab kev siv cov roj carbon activated

Cov pa roj carbon activated: yog ib hom non-polar adsorbent siv ntau dua. Feem ntau, nws yuav tsum tau ntxuav nrog dilute hydrochloric acid, tom qab ntawd los ntawm ethanol, thiab tom qab ntawd ntxuav nrog dej. Tom qab ziab ntawm 80 ℃, nws tuaj yeem siv rau cov duab chromatography. Granular activated carbon yog qhov kev xaiv zoo tshaj plaws rau kem chromatography. Yog tias nws yog hmoov zoo ntawm cov roj carbon activated, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov nqi tsim nyog ntawm diatomite raws li cov khoom siv lim, kom thiaj li zam dhau qhov ntsuas qis dhau.
Cov pa roj carbon ua kom muaj pa yog non-polar adsorbent. Nws cov adsorption yog rov qab rau silica gel thiab alumina. Nws muaj kev sib raug zoo ua ke rau cov khoom tsis muaj hom. Nws muaj qhov muaj zog tshaj plaws adsorption muaj peev xwm nyob hauv cov kua dej thiab cov tsis muaj zog hauv cov kuab tshuaj organic. Yog li ntawd, lub peev xwm elution muaj dej yog qhov tsis muaj zog tshaj plaws thiab cov kuab tshuaj organic muaj zog dua. Thaum cov tshuaj adsorbed yog eluted los ntawm cov roj carbon activated, lub polarity ntawm qhov hnyav txo, thiab lub peev xwm adsorption ntawm cov solute rau ntawm cov roj carbon activated txo, thiab lub peev xwm ntawm eluent zoo tuaj. Cov dej ua kom tsis haum, xws li cov amino acids, piam thaj thiab glycosides, tau raug cais.


Lub sij hawm tshaj tawm: Nov-05-2020