Identification by GC-MS of cymene isomers and 3,7,7-trimethylcyclohepta-1,3,5-triene in essential oils

Identification by GC-MS of cymene isomers and 3,7,7-trimethylcyclohepta-1,3,5-triene in essential oils Full article

Journal

Chemistry of Natural Compounds
ISSN: 0009-3130 , E-ISSN: 1573-8388

Output data

Year: 2006, Volume: 42, Number: 6, Pages: 699-701 Pages count : 3 DOI: 10.1007/s10600-006-0256-6

Tags

essential oils; 3,7,7-trimethylcyclohepta-1,3,5-triene; m-cymene; p-cymene; o-cymene; retention indices; GC-MS

Authors

Romanenko E.P. ¹ , Tkachev A.V. ^1,2

Affiliations

1	(Данные Web of science) NN Vorozhtsov Novosibirsk Inst Organ Chem, Novosibirsk 630090, Russia
2	(Данные Web of science) Novosibirsk State Univ, Novosibirsk 630090, Russia

Retention indices of cymene isomers published in popular GC-MS atlases were found to be erroneous by analyzing synthetic samples. The following retention indices (RI) were found using a nonpolar phase (diphenyl: dimethylpolysiloxane, 5:95) for four essential-oil components with indistinguishable mass spectra: 3,7,7-trimethylcyclohepta-1,3,5-triene (RI = 970), m-cymene (RI = 1022), p-cymene (RI = 1024), and o-cymene (RI = 1039). The relative distributions of these compounds were evaluated based on the analysis of about 1000 essential oils. Simple methods were given for preparing standard mixtures of isomeric compounds for identification by GC-MS.

Romanenko E.P. , Tkachev A.V.
Identification by GC-MS of cymene isomers and 3,7,7-trimethylcyclohepta-1,3,5-triene in essential oils
Chemistry of Natural Compounds. 2006. V.42. N6. P.699-701. DOI: 10.1007/s10600-006-0256-6 WOS Scopus РИНЦ

Published print:

Nov 1, 2006

Web of science	WOS:000244636200017
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