Fourteen isomers of chemically unmodified hexadecenol were analysed by two types of quadrupole mass spectrometer, coupled with a gas chromatograph, for the location of the double-bond position. A series of spectra were interpreted in terms of mass spectral patterns on a fuzzy classification, in whic
Location of double-bond position in tetradecenols without chemical modification by mass spectrometry
โ Scribed by Michio Horiike; Yuan Gu; Chisato Hiranio
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 321 KB
- Volume
- 25
- Category
- Article
- ISSN
- 1076-5174
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โฆ Synopsis
Twelve positional isomers of tetradecenol were analysed by conventional combined gas chromatography/mass spectrometry without any chemical derivatization for the elucidation of the double-bond position. The spectra were interpreted in terms of similarity of mass spectral patterns based on a fuzzy reasoning method, in which the relative abundance of selected predominant fragment ions were chosen as standard parameters and similarity indices were devised. The method was tested with pure alcohols and enabled the double-bond position to be located with acceptable accuracy.
๐ SIMILAR VOLUMES
Ten positional isomers (A2-A1') of unmodified dodecenal were analysed by conventional combined gas chromatography/electron impact mass spectrometry. The relative abundances of some predominant fragments in the isomers examined varied with the position of the original double bond. Eminent dominance o
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