运用高速逆流色谱和ELSD联用技术从Adenophora tetraphlla(南沙参)根茎中分离化学成分

2007/02/10   下载量: 2135

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Abstract: Preparative high-speed counter-current chromatography (HSCCC), as a continuous liquid–liquid partition chromatography with no solid support matrix, combined with evaporative light scattering detection (ELSD) was employed for systematic separation and purification of non-chromophoric chemical components from Chinese medicinal herb Adenophora tetraphlla (Thunb.), Fisch. Nine compounds, includingα-spinasterol, β-sitosterol, nonacosan-10-ol, 24-methylene cycloartanol, lupenone, 3-O-palmitoyl-β-sitosterol, 3-O-β-d-glucose-β-sitosterol, eicosanoic acid and an unknown compound, were obtained. The compounds were all above 95% determined by high-performance liquid chromatography (HPLC)–ELSD, and their structures were identified by H-NMR and chemical ionization mass spectroscopy (CI-MS). The results demonstrate that HSCCC coupled with ELSD is a feasible and efficient technique for systematic isolation of non-chromophoric components from traditional medicinal herbs.

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