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Reaction gas chromatography/mass spectrometry. 2—the use of catalytic on‐line dehydrogenation for the investigation of alcohols by gas chromatography/mass spectrometry
Author(s) -
Mikaya A. I.,
Smetanin V. I.,
Zaikin V. G.,
Antonova A. V.,
Prostakov N. S.
Publication year - 1983
Publication title -
organic mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0030-493X
DOI - 10.1002/oms.1210180303
Subject(s) - chemistry , mass spectrometry , dehydrogenation , gas chromatography , mass spectrum , chromatography , fast atom bombardment , catalysis , branching (polymer chemistry) , organic chemistry
A method for structure determination of aliphatic alcohols within mixtures is described. It involves the use of a vapour phase dehydrogenation micro‐reactor (Cu, 300°C) located between the chromatographic column and the mass spectrometer or between the injection port and the column. Since primary and secondary alcohols are converted into corresponding carbonyl compounds, they can be readily differentiated from tertiary alcohols and dialkyl ethers. An examination of the mass spectra of alcohols and carbonyl compounds permits the determination of molecular mass, the location of hydroxyl group and the determination of branching at the β‐carbon atom.