Cov khoom

Kev siv liab qab fused silica capillary hauv CE tuaj yeem qee zaum tsis yooj yim vim qhov tsis zoo cuam tshuam nrog rau kev nqus ntawm cov qauv lossis tsis ruaj khov ntawm EOF.Qhov no feem ntau yuav zam tau los ntawm txheej txheej sab hauv ntawm capillary.Hauv kev ua haujlwm no, peb nthuav tawm thiab qhia txog ob qhov tshiab polyelectrolyte coatings (PECs) poly(2-(methacryloyloxy)ethyl trimethylammonium iodide) (PMOTAI) thiab poly (3-methyl-1-(4-vinylbenzyl)-imidazolium chloride) (PIL- 1) rau CE.Cov coated capillaries tau kawm los ntawm kev siv cov dej sib txawv ntawm cov pH sib txawv, ionic zog, thiab muaj pes tsawg leeg.Peb cov txiaj ntsig tau pom tias cov tshuaj ntsuam xyuas polyelectrolytes tuaj yeem siv tau raws li cov txheej txheem ib nrab (lub cev adsorbed) nrog tsawg kawg tsib zaug kev ruaj ntseg ua ntej cov txheej txheem luv luv yog tsim nyog.Ob qho PECs tau pom tias muaj kev poob qis heev ntawm pH 11.0.EOF tau siab dua siv Good's buffers dua li nrog sodium phosphate tsis nyob ntawm tib pH thiab ionic zog.Lub thickness ntawm PEC txheej kawm los ntawm quartz crystal microbalance yog 0.83 thiab 0.52 nm rau PMOTAI thiab PIL-1, feem.Lub hydrophobicity ntawm PEC cov khaubncaws sab nraud povtseg tau txiav txim los ntawm kev tsom xam ntawm homologous series ntawm alkyl benzoates thiab qhia raws li qhov kev faib tawm tas mus li.Peb cov txiaj ntsig tau pom tias ob qho PECs muaj qhov sib piv hydrophobicity, uas ua rau muaj kev sib cais ntawm cov tebchaw nrog cov log Po/w > 2. Lub peev xwm cais cov tshuaj cationic tau pom nrog β-blockers, cov tshuaj feem ntau siv tsis raug rau hauv doping.Ob txheej txheej kuj tseem tuaj yeem cais cov khoom siv hydrolysis ntawm cov kua ionic 1,5-diazabicyclo [4.3.0] tsis-5-ene acetate ntawm cov kua qaub heev, qhov uas liab qab fused silica capillaries ua tsis tiav qhov kev sib cais.