A calculation method has been developed to enhance the effect of deuterium labeling in the mass spectra of linear vicinal dideuterioalkanes (lvda). Individual lvda can be identified from these enhanced spectra. Single carbon-number mixtures of lvd nonanes and lvd decanes have been analyzed successfully using matrices derived from spectra of standards. In addition, enhanced mass spectra have been predicted for all of the lvd heptadecanes and lvd nonadecanes. Matrices have been constructed from the predicted spectra, and preliminary tests of these matrices have been conducted. All identifications and analytical results on the lvda studied can be used to identify the precursor olefins.
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