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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Constituents of Hypericum hircinum Oils
TL;DR: The fruit and leaf oils of Hypericum hircinum (Guttiferae, Hypericoideae) from Calabria (Italy) have been studied by GC and GC/MS as discussed by the authors.
Journal ArticleDOI
Decomposition process in the Mediterranean region. Chemical compounds and essential oil degradation from Myrtus communis
TL;DR: In this paper, fresh mature leaves of myrtle were used for the study using the litterbag technique and the essential oil content of the initial plant was 0.62% dry weight (dw) and after eighteen months burring dropped to 0.05%.
Journal ArticleDOI
Prevention of morphine dependence and tolerance by Nepeta menthoides was accompanied by attenuation of Nitric oxide overproduction in male mice.
Batool Rahmati,Ahmad Beik +1 more
TL;DR: It appears that Nepeta menthoides and methadone prevented morphine dependence and tolerance, partly through inhibition of the NO overproduction.
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Studies on essential oil composition of cultivars of black pepper (Piper nigrum L.) - V.
TL;DR: In this article, two major cultivars of black pepper from Kerala viz. Vellanamban and Sreekara and one Indonesian cultivar grown in Kutching in Kerala were analyzed for a period of three consecutive seasons for their oil composition.
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The essential oil composition of Hypericum scabrum L. from Iran
TL;DR: In this article, the composition of the essential oil obtained from the dried flowering aerial parts of Hypericum scabrum L. (Hypericaceae) was analyzed by 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.