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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VOLATILE CONSTITUENTS OF Matricaria recutita L. FROM ESTONIA
Anne Orav,Tiiu Kailas,K. Ivask +2 more
TL;DR: In this article, the volatile constituents of Matricaria recutita L. cultivated in Estonia were isolated by SDE and studied by GC/FID and GC/MS.
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Essential Oil of Coleus aromaticus Benth. from India
TL;DR: The essential oils of Coleus aromaticus distilled in different seasons have been analyzed by capillary GC and GC/MS and found to contain higher contents of carvacrol and β-caryophyllene and oxygenated constituents than the oil produced in May.
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Studies on the antioxidant activity of the essential oil and extract of Tunisian Tetraclinis articulata (Vahl) Mast. (Cupressaceae)
TL;DR: The correlation between the antioxidant activity potential and total phenolic level of the extract was noted, and the amount of the total phenolics, flavonoids and condensed tannins was very high in the 80% aqueous acetone extracts.
Journal ArticleDOI
Essential Oil Content and Composition of Kelussia odoratissima Mozaff. as an Iranian Endemic Plant
TL;DR: The essential oil isolated by hydro distillation from aerial parts of Kelussia odoratissima was found to be a pale yellow liquid and was obtained in yield of 3.2 % based on dry weight, which can be used as a potential source of Z-ligustilid.
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Effect of Growing Locations on the Essential Oil Content and Chemical Compositions of Bunium persicum Boiss Wild Growing in Iran
Reza Omidbaigi,M.J. Arvin +1 more
TL;DR: In this paper, four different growing locations were studied to determine the influence of climatic conditions on the essential oil content and compositions of black zira (Bonium persicum), extracted by hydro distillation technique and were analyzed by capillary GC and GC-MS.
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.