Electroosmotic flow can be repressed by txoov tus nqi ntawm sab hauv ntawm lub capillary los ntawm kev kho tshuaj ntawm qhov chaw. … Tus nqi ntws kuj tuaj yeem ua tsis zoo vim qhov chaw capillary saum npoo xws li cov nqi tsis sib xws thiab kev nqus ntawm ions.
Yuav ua li cas thiaj txo tau electroosmotic flow?
Electroosmotic ntws tuaj yeem txo tau los ntawm txheej txheej capillary nrog cov khoom siv uas txwv tsis pub ionization ntawm silanol pawg, xws li polyacrylamide lossis methylcellulose.
Dab tsi cuam tshuam rau electroosmotic flow?
Micellar Electrokinetic Capillary Chromatography (MEKC)
Cov khoom sib xyaw muaj cov polar tsis zoo them qhov chaw thiab yog ib txwm nyiam rau qhov zoo them anode. … Cov yam ntxwv uas cuam tshuam rau cov electroosmotic ntws hauv MEKC yog: pH, surfactant concentration, additives, thiab polymer coatings ntawm phab ntsa capillary.
electroosmotic flow yog vim li cas nws tshwm sim?
Electroosmotic flow tshwm sim vim cov phab ntsa ntawm cov hlab capillary yog hluav taws xob them . Qhov saum npoo ntawm silica capillary muaj ntau ntawm silanol pawg (–SiOH). Ntawm pH qib siab tshaj li ntawm 2 lossis 3, cov pab pawg silanol ionize los tsim cov pa phem silanate ions (–SiO–).
Yuav ua li cas rau qhov tshwm sim ntawm Electroosmosis?
Qhov no yog vim muaj them hom ntawm cov khoom nto ; los yog nyob rau hauv daim ntawv ntawm ntoionized pawg (piv txwv li SiO- nyob rau hauv rooj plaub ntawm silica) los yog vim qhov nyiam adsorption ntawm ions los ntawm cov tshuaj. Feem ntau nws yog ob qho tib si ua ke.
