FIRST RESULTS IN TRACE IDENTIFICATION OF ALLELOCHEMICALS AND PHEROMONES BY COMBINING GAS-CHROMATOGRAPHY MASS-SPECTROMETRY AND DIRECT DEPOSITION GAS-CHROMATOGRAPHY FOURIER-TRANSFORM INFRARED SPECTROMETRY

The advantages of a combining GC-MS and direct deposition GC-Fourier t ransform IR spectrometry at the same level of sensitivity are demonstr ated using an apolar capillary column. This technique was applied to a llelochemicals and pheromones present in minute concentrations. The id entification of Allium volatiles and of the leek-moth male pheromones is described.