質量スペクトルによる炭化水素の定性分析再配列イオンの測定

抄録

Rearrangement ions of hydrocarbons were investigated to make a contribution to the qualitative analysis by mass spectra. It was proved that this analysis made an impatent contribution to the qualitative analysis. The hydrocarbons used for the analysis were paraffins, naphthenes, olefins, and aromatics of C₆ and lower. As these iso-paraffins, naphthenes, and olefins have many rearrangement ions, their measurements are contributed to qualitative analysis. While, n-paraffins and aromatics have rather less ions.
Good results were obtained in the examination by ratio of mass-spectra analysis, pattern-exponent analysis and ionization method of low energy, and application of these analyses to the qualitative analysis of the unknown fraction of cracking gas separated by gas chromatography.
The above experiment was conducted simultaneously with the measurement of rearrangement ions.
It is believed that these results obtained by the measurement explain the study on the mechanism of dissociation of molecules through electron bombardment. Hereafter, similar measurements will be made on hydrocarbons of C₇ and higher, and the mechanism of dissociation of molecules will be investigated through electron bombardment.