http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, Manhoe,Way, J. Douglas,Baldwin, Robert M. 한국화학공학회 2004 Korean Journal of Chemical Engineering Vol.21 No.2
Mesoporous glass beads and 5um silica particles were modified with beta-cyclodextrin(β-CD)by means of directly bonding, linking spacer group, and cross-linking agent. The selectivities of the β-CD modified silica particles were measured by simple column chromatography to separate a model mixture of 1-and 2-hydroxy-naphthalene(naphthols)and ortho, meta, and para-xylene. In the packed column chromatography experiments, two major controlling factors(inclusion complex formation effect and steric hindrance effect of the analytes)on the separations were observed. The elusion orders of the β-CD directly bonded glass beads were meta-, para-, ortho-xylene and 1-naphthol,2-naphthol. The phenomena of β-CD pore blocking and narrowing by spacer groups and cross-linking agent were observed. The spacer group and cross-linking agent decreased inclusion complex formation of 2-naphthol.
Manhoe Kim,J. Douglas Way,Robert M. Baldwin 한국화학공학회 2004 Korean Journal of Chemical Engineering Vol.21 No.2
Mesoporous glass beads and 5 mm silica particles were modified with beta-cyclodextrin ( b-CD) by means of directly bonding, linking spacer group, and cross-linking agent. The selectivities of the b-CD modified silica particles were measured by simple column chromatography to separate a model mixture of 1- and 2-hydroxy-naphthalene (naphthols) and ortho, meta, and para-xylene. In the packed column chromatography experiments, two major controlling factors (inclusion complex formation effect and steric hindrance effect of the analytes) on the separations were observed. The elusion orders of the b-CD directly bonded glass beads were meta-, para-, ortho-xylene and 1-naphthol, 2-naphthol. The phenomena of b-CD pore blocking and narrowing by spacer groups and cross-linking agent were observed. The spacer group and cross-linking agent decreased inclusion complex formation of 2-naphthol.