Abstract
Gas chromatography-pyrolysis-isotope mass spectrometry (GC-P-IRMS) is applied to the authenticity assessment of lavender oils. For this reason, self-prepared lavender oils, samples of linalool and linalyl acetate labeled as synthetic and natural, and commercially available lavender oils have been investigated. 2H/1H isotope ratios of linalool and linalyl acetate have been determined, and characteristic ranges of authenticity were deduced. Samples of natural linalool and linalyl acetate are clearly differentiated from those of synthetic origin by their δ2HV-SMOW values. Besides enantioselective multidimensional gas chromatography-mass spectrometry (enantio-MDGC-MS), online GC-P-IRMS has proven to be an additional and powerful tool in the detection of lavender oils adulteration.
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