Abstract
By identification of the essential oil component ‘cis-sabinene hydrate acetate’ of marjoram we demonstrate that the mass spectrum—furnish to the chemical composition and molecular configuration of compounds—can lead to incorrect qualitative identification if retention data are not taken into consideration. We studied also the temperature-dependence of the retention data of different compounds, and our measurements showed that because of the different temperature-dependence, a change in the temperature of the analysis results in a change in order of elution. The use of this phenomenon, originating from the change of the retention data, both increases the safety of qualitative identification and aids determination of the optimum measurement conditions in both isothermal and temperature-programmed modes of operation.
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