Journal ArticleDOI
Gas chromatographic retention indices of monoterpenes and sesquiterpenes on methyl silicon and Carbowax 20M phases
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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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Beyond six scents : defining a seventh Thymus vulgaris chemotype new to southern France by ethanol extraction
TL;DR: In this paper, a new 1,8-cineole chemotype of Thymus vulgaris from a well-studied area in southern France was discovered. But the chemotype has practical limitations, especially when applied to ecological questions.
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Extraction of essential oils from Algerian myrtle leaves using instant controlled pressure drop technology.
TL;DR: The new extraction process of Détente Instantanée Contrôlée DIC (French, for instant controlled pressure drop) was studied, developed, quantitatively and qualitatively compared to the conventional hydrodistillation method for the extraction of essential oils from Algerian myrtle leaves and gave high yields and high quality essential oil.
Journal ArticleDOI
Effect of 24-epibrassinolide on growth, photosynthesis, and essential oil content of pelargonium graveolens (l.) herit
K. N. Swamy,S. S. R. Rao +1 more
TL;DR: A positive impact of the new group of phytohormones on the performance of geranium plant, a highly valued aromatic plant is demonstrated.
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Variation in volatile leaf oils of the Tasmanian Eucalyptus species - 1. Subgenus Monocalyptus
TL;DR: Multivariate analyses indicated that the Tasmanian eucalypt species from series Obliquae are well differentiated and exhibit little intraspecific variation in percentage oil composition, while species from the series Piperitae show great intraspescific variation and are poorly differentiated which is consistent with morphological studies.
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Application of comprehensive two-dimensional gas chromatography (GC × GC) to the enantioselective analysis of essential oils
TL;DR: In this article, a new method for the enantioselective analysis of essential oils is described, using comprehensive two-dimensional gas chromatography (GC×GC), which consists of a primary column containing a cyclodextrin derivative as a chiral selector, and a secondary column containing polyethylene glycol stationary phase.
References
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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.