2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Electroosmotic flow tshwm sim thaum ib qho kev tsav tsheb hluav taws xob cuam tshuam nrog cov nqi hluav taws xob hauv hluav taws xob ob txheej ze ntawm cov kua / khoom sib cuam tshuam uas ua rau muaj lub zog hauv lub cev uas ua rau cov kua dej ntau ntau.
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–).
electroosmotic flow generated li cas?
Electroosmotic ntws yog tshwm sim by Coulomb quab yuam induced los ntawm ib tug hluav taws xob teb ntawm net mobile electric charge nyob rau hauv ib tug daws. … Qhov tshwm sim yog hu ua electroosmotic flow.
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.
Vim li cas electroosmotic flow pH nyob ntawm?
Lub electro-osmotic flow (EOF) tuaj yeem piav qhia raws li kev tshaj tawm lossis kev txav mus los. … Vim tias tus nqi ntawm cov hlab ntsha sib txawv raws li kev ua haujlwm ntawm pH, zetamuaj peev xwm kuj txawv nrog pH, txhais tau hais tias kev txav mus los thiab kev tshaj tawm ntawm EOF yog pH siab heev.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Rau qhov tshwm sim tshwm sim?
Cov tshuaj tiv thaiv tus kheej yogtawm tsam uas nyiam tsim cov khoom ntawm cov xwm txheej uas tshwm sim. … Qhov kev sib xyaw ua ke ntawm kev txo qis ntawm lub zog thiab qhov nce hauv entropy txhais tau hais tias cov tshuaj tiv thaiv combustion tshwm sim tsis tu ncua.
Thaum twg pfizer tshwm sim tshwm sim?
Qee yam tshwm sim tshwm sim txoj cai tom qab koj txhaj tshuaj, zoo li mob me me hauv koj txhais caj npab. Lwm tus yuav siv sij hawm ntau teev los txhim kho. Nco ntsoov tias nrog ob koob tshuaj tiv thaiv zoo li Pfizer-BioNTech thiab Moderna, koj tuaj yeem pom muaj kev phiv ntau dua tom qab txhaj tshuaj thib ob.
Yuav ua li cas thiaj li electroosmotic ntws tawm?
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 txiav txim siab seb qhov kev tshwm sim yog tshwm sim los yog tsis ua raws li txoj cai?
Kev sib xyaw ua lej ntawm kev hloov pauv enthalpy thiab hloov pauv hloov pauv tso cai rau kev hloov pauv ntawm lub zog dawb los suav. A tawm tsam nrog tus nqi tsis zoo rau ΔG tso tawm lub zog dawb thiab yog li nws tus kheej. Cov tshuaj tiv thaiv nrog qhov zoo ΔG yog tsis ua raws li kev xav thiab yuav tsis nyiam cov khoom.
