Cov khoom

Nanofibrous silica-based nyob ruaj khov theem rau electrospun ultra-thin txheej chromatography (E-UTLC) tau piav qhia.Nanofibers tau tsim los ntawm electrospinning ib qho kev daws ntawm silica nanoparticles dispersed hauv polyvinylpyrrolidone kev daws teeb meem los tsim cov silica/polymer nanofibers.Cov theem nyob ruaj ruaj tau tsim los ntawm as-spun nanofibers, los yog cov nanofibers tau rhuab mus rau crosslink polyvinylpyrrolidone los yog calcine thiab xaiv tshem tawm cov polymer.Raws li-spun, crosslinked, thiab calcined nanofibers nrog cov lev tuab zoo sib xws (23-25 ​​μm) tau soj ntsuam raws li theem nyob ruaj khov rau E-UTLC kev sib cais ntawm laser dyes thiab amino acids thiab piv rau kev lag luam silica TLC daim hlau.Raws li-spun nanofiber daim hlau muab ceev ceev mobile theem velocities, tab sis zoo li lwm yam polymer-based nanofibers, kev sib cais tsuas yog sib xws nrog cov tswv yim siv cov nonsolvents ntawm cov polymer.Crosslinked nanofibers tsis yog raws li kev txwv ntawm kev ruaj ntseg tshuaj, tab sis kev sib cais ua rau cov duab tailed.Tsis muaj kev txwv tsis pub dhau ntawm cov theem ntawm cov xov tooj ntawm tes, cov kuab tshuaj tshuaj ntsuam xyuas, thiab cov txheej txheem kev pom pom tau pom rau calcined nanofibers.Kev sib cais ua tau zoo ntawm cov amino acids tau ua nyob rau hauv 15 hli ntawm calcined nanofiber daim hlau, nrog rau cov phaj qhov siab tsawg li 8.6 μm, thiab phaj tooj loj li 1400. Kev sib txuas ntxiv ntawm cov nanofibers muab lub sij hawm tshawb xyuas luv dua tab sis kuj muaj qhov dav dav dua.Qhov txuas ntxiv ntawm cov theem nyob ruaj khov rau silica-based nanofibers tau nthuav dav ntau ntawm cov theem ntawm cov xov tooj ntawm tes, cov tshuaj ntsuam xyuas cov kuab tshuaj, thiab cov tswv yim pom kev uas tuaj yeem siv rau E-UTLC kev sib cais.