Normal-phase dynamic (solvent-generated) molecular complexation chromatography using anionic ion exchangers

作者: G. Szepesi , M. Gazdag , R. Iváncsics

DOI: 10.1016/S0021-9673(00)80120-X

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摘要: Abstract A chiral ion exchanger, (+)- and (−)-antipodes of 10-camphorsulphonic acid, was applied for the normal-phase solvent-generated molecular complexation chromatography optical isomers alkaloids. It dissolved in less polar phase a three-component eluent mixture consisting solvents having different polarities. Separations were performed on bonded stationary (cyanopropylsilica). Remarkably high relative retentions archieved, permitting rapid separation eburnane alkaloids selected as models investigations. The influence mobile composition antipode selection exchanger selectivity efficiency is discussed. Some applications proposed method, including eight vincamine, are

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