Similarity of mass spectra of double-bond positional isomers of tetradecen-1-ols and their acetates was evaluated, based on the intensity ratios of pairs of predominant ions, transformed by a novel equation to define a similarity index.

Characteristics of mass spectra of isomeric tetradecadien-1-ols were investigated by electron impact mass spectrometry, and mass spectral fragmentation pathways were proposed based on collision-induced dissociation experiments and mass-analyzed ion kinetic energy spectrometry. Copyright 1999 John Wiley & Sons, Ltd.