Journal ArticleDOI
Gas chromatographic retention indices of monoterpenes and sesquiterpenes on methyl silicon and Carbowax 20M phases
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TLDR
In this article, some 900 Kovats' indices of 400 individual compounds on methyl silicone (dimethyl polysiloxane) and/or Carbowax 20M liquid phases are summarized from the general literature.About:
This article is published in Journal of Chromatography A.The article was published on 1990-01-01. It has received 2118 citations till now. The article focuses on the topics: Kovats retention index.read more
Citations
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Essential Oil Composition of Three Sideritis Species from Bulgaria
TL;DR: The composition of essential oils of three Sideritis species was investigated by GC and GC/MS as discussed by the authors, and it was found that S. syriaca L. contained a high percentage of myrcene (50.5%), while sesquiterpenes dominated in the oils of S. scardica Griseb and S. moniana L.
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Chemical Composition and Bio-efficacy of Essential Oils from Italian Aromatic Plants: Mentha suaveolens, Coridothymus capitatus, Origanum hirtum and Rosmarinus officinalis.
Antonella Spagnoletti,Alessandra Guerrini,Massimo Tacchini,Vittorio Vinciguerra,Claudia Leone,Immacolata Maresca,Giovanna Simonetti,Gianni Sacchetti,Letizia Angiolella +8 more
TL;DR: Thyme, oregano and rosemary EOs exhibited important antioxidant activities by ABTS•+ assay compared with trolox, and that of M. suaveolens showed a stronger cytotoxic activity on HaCaT cells.
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Headspace solid-phase microextraction–gas chromatography–mass spectrometry analysis of the volatile components of longan ( Dimocarpus longan Lour.)
TL;DR: In this article, a headspace solid-phase microextraction method was applied to the analysis of volatile components in longan (Dimocarpus longan Lour), which was found to be more efficient for extracting volatile compounds than other fibers such as those coated with polydimethylsiloxane, polyacrylate, and carboxen-polydimethyl siloxane.
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Analysis of the Oil of Large Cardamom (Amomum subulatum Roxb.,) Growing in Sikkim
TL;DR: Oils obtained by hydrodistillation of the seeds of green, freshly dried and those available in the local market of large cardamom were analyzed by GC and GC/MS and the major component was 1,8-cineole.
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Antimicrobial Activities of Roman Chamomile Oil From France and Its Main Compounds
Stefanie Bail,Gerhard Buchbauer,Leopold Jirovetz,Zapriana Denkova,Alexander Slavchev,Albena Stoyanova,Erich Schmidt,Margit Geissler +7 more
TL;DR: It is proposed that the very high antimicrobial activity of Roman chamomile oil from the Provence results of effects found for both main and minor constituents of this oil are proposed.
References
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Journal ArticleDOI
A generalization of the retention index system including linear temperature programmed gas-liquid partition chromatography.
H. van Den Dool,P. Dec. Kratz +1 more
TL;DR: The equation given by Kovats for the calculation of the retention index in case of isothermal operation is transformed to a more general form to include also the case of linear temperature programmed operation and gives the same retention index for both ways of operation.
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Gas‐chromatographische Charakterisierung organischer Verbindungen. Teil 1: Retentionsindices aliphatischer Halogenide, Alkohole, Aldehyde und Ketone
TL;DR: In this article, a simple relation exists between the retention index of a compound on a non-polar stationary phase and its boiling point, which is defined as the ratio of the boiling point of the compound to its retention index.
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The identification of sesquiterpene hydrocarbons from gas-liquid chromatography retention data
TL;DR: In this article, the identification of sesquiterpenes by gas-liquid chromatography was evaluated, and the most reproducible form of GLC data was found to be the SESQUERPene data.