Gas chromatographic study of the urea-cetyl alcohol adduct and its components. II. Urea as a selective stationary phase

Summary

The properties of urea (the host component in the inclusion compound with cetyl alcohol) as a stationary phase were studied. In contrast to an earlier work [2] it has been found that, by increasing the urea surface (by depositing on a suitable support or adsorbent) both its polar properties and the contribution made by the formation of inclusion compounds [3] can be followed chromatographically and utilized analytically. In the present case, with urea deposited on Chromosorb W, the strongly polar character of the phase predominated to such an extent that the clathration contribution was not observed. From the analytical point of view this is, however, an interesting and useful GSC system permitting very rapid analyses even at relatively low experimental temperatures.