Reversed phase chromatographic process

摘要

A process for the reversed phase chromatographic decalorisation, separation and purification of water-soluble nonionic contrast media compounds from solutions containing nonionic compound impurities is described. A solution containing the contrast media compound and impurities is passed through a chromatographic column the column is eluted to produce primary eluate, and a solvent is passed through the column. The solvent is removed from the mixture thus formed leaving an aqueous solution which concentrated and nonionic constrast media compound is recovered from the aqueous solution.