Aqueous solution ofN-methylmorpholineN-oxide as a stationary liquid phase in steam chromatography

The retention of more than 70 voltatile organic compounds of different classes was studied by steam chromatography using aqueous solutions ofN-methylmorpholineN-oxide as the stationary liquid phase (SLP). The effects of temperature and composition of the mobile phase on the retention factors (k) for polar and nonpolar sorbates were elucidated. An unusual order of elution of aliphatic alcohols was noted, namely,tert-butyl alcohol