Form Of Chromatography Research Articles

Chromatography of polyamines

The separation of polyethylene polyamines by various forms of chromatography has been studied. Ethylenediamine is easily separated from the higher polyamines by thin-layer chromatography and by ion-exchange chromatography. Diethylenetriamine, triethylenetetramine and tetraethylenepentamine can be separated by gas-liquid chromatography on Teflon powder coated with 5% SE-30, and on a larger scale by ion-exchange chromatography. The latter technique involves absorption on AG-50X8, development with 2 M hydrochloric acid, and elution with 6% ammonia solution.