Essential Oils and Their Constituents. XXV.Thin Layer Chromatography. Some Chemical and Chemotaxonomic Applications
M. C. Nigam , I. C. Nigam , Leo Levi

Synopsis

Thin layer chromatography has been applied to the analysis of essential oils and their constituents. R _f -data are given for terpene alcohols, esters and ketones. Vanillinsulfuric acid (5% w.\/v.) is used as spray reagent and sensitivity limits are reported for the compounds examined. Characteristic colorations observed are also recorded. Typical thin layer chromatograms are shown to illustrate the detection of sophistication of a commercial bois de rose oil, the distinction between genuine palmarosa and gingergrass oils, and the recognition of botanical and\/or geographical origins of authenticated spearmint and citronella oils.

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