期刊
JOURNAL OF CHROMATOGRAPHY A
卷 968, 期 1-2, 页码 31-40出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0021-9673(02)00840-3
关键词
enantiomer separation; chiral stationary phases, LC; flavanones; lonones; beta-cyclodextrin
A novel methylated beta-cyclodextrin chiral stationary phase (CSP-ME), which was chemically immobilised onto porous silica via multiple urea-linkages was synthesised. The CSP-ME chiral stationary phase depicted good enantiomer separation abilities for some well-known flavour as well as fragrance compounds using high-performance liquid chromatography under reverse phase conditions. The optimum resolution for alpha-ionone, 3-methyl-alpha-ionone, flavanone, 5-methoxyflavanone, 6-methoxyflavanone, 7-methoxyflavanone, hesperetin, naringenin and taxifolin was achieved using a mobile phase composition consisting of 1 wt.% triethylammonium acetate buffer (pH 4.68)-methanol. The effects of pH of tri-ethylantmonium acetate buffer and the methanol-acetonitrile content of the mobile phase composition on their retention time and resolution were examined to optimise the separation conditions. (C) 2002 Elsevier Science B.V. All rights reserved.
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