Premium
Mass spectrometric location of double‐bond position in isomeric dodecenols, without chemical derivatization
Author(s) -
Yuan Gu,
He Meiyu,
He Xiaoran,
Horiike Michio,
Kim ChulSa,
Hirano Chisato
Publication year - 1993
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.1290070706
Subject(s) - chemistry , double bond , mass spectrometry , derivatization , analytical chemistry (journal) , position (finance) , mass spectrum , spectral line , quadrupole , similarity (geometry) , chromatography , atomic physics , organic chemistry , physics , finance , astronomy , artificial intelligence , computer science , economics , image (mathematics)
A new procedure is presented for locating double‐bund position in dodecenols. Ten isomers of chemically unmodified dodecenol were analysed by two kinds of mass spectrometers. A series of spectra obtained with a magnetic sector instrument were interpreted by analysing the similarity of mass spectral patterns based on a ‘fuzzy’ reasoning method, in which the intensity ratios of six diagnostic pairs of the predominant ions were defined as standard parameters. The method was tested with other series of spectra from a quadrupole mass spectrometer, and the original double‐bond position in each isomer was located unambiguously.