Characterization of Natural and Synthetic Waxes Using Combined Chromatographic Techniques

evaluation of single WAxEs and various mixtures normally found in cosmetic preparations is presented. The thin-layer chromatographic systems developed have been found to give the best possible class separations of the wax components, which has facilitated the analysis of mixtures. The gas-liquid chromatographic evaluation utilized short columns (16-18 in. long) on the hydrocarbon, alcohol, and acid components of the various waxes. Thus the alcohols with chain lengths to Ca, were easily resolved without resorting to derivatives. This combination of the various techniques described resulted in the identification of individual waxes