Cov khoom

Kauv raj sib dhos counter-tam sim no chromatography tau ntse siv nyob rau hauv enantioseparation ntawm dl-tryptophan siv bovine serum albumin li chiral selector.Ib qho kev txhim kho biphasic aqueous-aqueous hnyav system 12.0% (w / w) polyethyleneglycol 8000-9.0% (w / w) dibasic potassium phosphate-0.1% ammonia-78.9% dej tau siv los ua cov kuab tshuaj tiv thaiv tam sim no chromatography, uas bovine serum albumin feem ntau tau faib rau hauv theem qis ntawm ob-theem aqueous system.Lub aqueous-aqueous hnyav system muab ib tug heev enantioselectivity rau d- thiab l-tryptophan ntawm α = 2.605 nrog rau kev faib piv DD = 1.200 thiab DL = 0.461.Kev daws teeb meem siab tshaj plaws tau txais rau enantioseparation ntawm 2.0mg ntawm dl-tryptophan los ntawm kauv raj sib dhos counter-tam sim no chromatography nyob rau hauv chav tsev kub.Nws tau pom tias 0.1% ammonia ntxiv rau hauv aqueous-aqueous hnyav system ua kom zoo dua cov enantioseparations.Ib qho txawv txawv tsis tshua muaj siab tshaj plaws rau l-tryptophan tau pom thaum lub sij hawm antioseparations.Txhawm rau muab cov lus piav qhia, kev hloov pauv loj ntawm d- thiab l-enantiomers los ntawm kev sib cuam tshuam ntawm ob theem tau ntsuas.Nws tau pom tias l-tryptophan tau pom qis dua qhov hloov pauv ntau dua li d-tryptophan.Cov kev sib tham ntxiv tau thov rau cov laj thawj ua tau rau qhov sib txawv ntawm qhov sib txawv ntawm cov enantiomers.