Racemic tryptophan was separated with resolution 1.3 by CE. In 10 mM H2PO4 containing triethanolamine salt of pH2.8 ahnost saturated α-CD was used as chiral reagent. For the first time L- and D-tryptophan enantiomers...Racemic tryptophan was separated with resolution 1.3 by CE. In 10 mM H2PO4 containing triethanolamine salt of pH2.8 ahnost saturated α-CD was used as chiral reagent. For the first time L- and D-tryptophan enantiomers in human urine can be detected in 20 minute without pretreatment.展开更多
This paper reports the spectrophotometrical determination of the dimethyl-β-cyclodextrin （M-fl-CD）. The inclusion phenomenal of phenolthalin by M-β-CD is verified by the red color fading gradually with the increas...This paper reports the spectrophotometrical determination of the dimethyl-β-cyclodextrin （M-fl-CD）. The inclusion phenomenal of phenolthalin by M-β-CD is verified by the red color fading gradually with the increasing concentration of M-β-CD.展开更多
基金Acknowledgement： The paper research was granted by the National Nature Science Foundation of China, No.20475038.
文摘Racemic tryptophan was separated with resolution 1.3 by CE. In 10 mM H2PO4 containing triethanolamine salt of pH2.8 ahnost saturated α-CD was used as chiral reagent. For the first time L- and D-tryptophan enantiomers in human urine can be detected in 20 minute without pretreatment.
基金Acknowledgment The author thanks the financial support from the Chinese National Nature Science Foundation
文摘This paper reports the spectrophotometrical determination of the dimethyl-β-cyclodextrin （M-fl-CD）. The inclusion phenomenal of phenolthalin by M-β-CD is verified by the red color fading gradually with the increasing concentration of M-β-CD.
