Vim li cas tus number case cais?
Vim li cas tus number case cais?

Video: Vim li cas tus number case cais?

Video: Vim li cas tus number case cais?
Video: vim li cas qaib ib zag los sis ib tsob noob ho cais ua ke tsis tau..? 2024, Kaum ib hlis
Anonim

Raws li cov dej nkag mus rau daim ntawv, cov xim yuav cais tawm mus rau hauv lawv cov khoom. Capillary kev txiav txim ua rau cov kuab tshuaj mus rau hauv daim ntawv, qhov twg nws ntsib thiab dissolves tus cwj mem . Cov yaj tus cwj mem (the mobile phase) maj mam txav mus rau daim ntawv (theem nyob ruaj ruaj) thiab cais tawm mus rau hauv cov khoom sib txawv.

Ib yam li ntawd, vim li cas Inks cais hauv chromatography?

Ink yog sib xyaw ntawm ob peb dyes thiab yog li peb tuaj yeem ua tau cais cov xim ntawm ib leeg siv chromatography . Thaum twg tus cwj mem raug rau qee cov kuab tshuaj cov xim yaj thiab tuaj yeem cais tawm. Thaum peb nthuav tawm ib daim ntawv nrog tus cwj mem ntawm nws mus rau qhov hnyav, lub tus cwj mem kis thoob plaws daim ntawv thaum lub tus cwj mem yaj.

Ib yam li ntawd, vim li cas txhua tus cwj mem sib cais ua cov xim sib txawv? Nyob rau hauv lub khob kas fes lim, dej hauv lub tus cwj mem nqa lub xim rau ntawm daim ntawv. Thaum lub tus cwj mem dries, cov xim tseem nyob ntawm daim ntawv. Raws li cov dej ntws los txawv pigments ntawm txawv nqi, dub tus cwj mem cais tawm kom pom cov xim uas sib xyaw ua kom nws.

Kuj nug, yog dej ib txwm yog cov kuab tshuaj zoo hauv kev sib cais tus lej?

Ntau haiv neeg cov kuab tshuaj tuaj yeem siv hauv tus cwj mem chromatography. Rau inks uas yog dej soluble, dej yog cov kuab tshuaj ntawm kev xaiv. Rau inks uas tsis soluble nyob rau hauv dej , methanol, ammonium hydroxide, ethanol, acetone, lossis hydrochloric acid tuaj yeem siv los ua cov kuab tshuaj.

Dab tsi ua rau cov xim sib cais hauv ntawv chromatography?

Ib qho hnyav (xws li dej, roj lossis isopropyl cawv) tso cai rau nqus tau ntawv strip. Txawv molecules khiav mus rau ntawv ntawm tus nqi sib txawv. Yog li ntawd, cov khoom ntawm cov tshuaj cais thiab, nyob rau hauv cov ntaub ntawv no, ua pom raws li ib daim hlab ntawm xim ntawm chromatography ntawv.

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