Rapid collection and identification of a novel component from Clausena lansium Skeels leaves by means of three-dimensional preparative gas chromatography and nuclear magnetic resonance/infrared/mass spectrometric analysis.

Highlights: [•] A recently-developed three-dimensional prep-GC system has been applied to wampee essential oil. [•] The prep GC system enables the rapid collection of pure compounds from complex samples. [•] An isolated unknown solute was identified through NMR, IR and MS data. [•] The structure of an oxygenated sesquiterpene is here reported for the first time. [ABSTRACT FROM AUTHOR]