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flash chromatographySoftware
pentaneChemical substance
acetoneChemical substance
silica gelChemical substance
NMRTopical concept
p. 37-40,Jan/Feb.Identification of components from volatile oils: spectroscopical analysis of sesquiterpenes mixtures. This paper describes a chromatographic method to fractionate volatile oils and to identify their sesquiterpenic constituents. The fractionation process includes flash chromatography over silica gel and chromatography over silica gel/AgNO3, utilising pentane, CH2Cl2 and/or acetone as eluents. GC chromatograms were obtained in order to get the relative percentage of each constituent in the volatile oils, to get the retention time value of them as well as to analyse and combine the fractions eluted from the columns. Such procedure afford mixtures of sesquiterpenes which are analysed by GC/MS, 13C and 1H NMR
One hundred nine oil samples were separated chromatographically to obtain oil fractions with a decre...
Essential oils are concentrated hydrophobic liquids, consisting of volatile compounds. This thesis e...
Gas chromatography coupled to mass spectrometry (GC-MS) and comprehensive two-dimensional gas chroma...
This paper describes a chromatographic method to fractionate volatile oils and to identify their ses...
In recent years the study of the volatile components of natural products has been enormously extende...
The paper reports basic modern methods for isolating terpenes, outlines the advantages and reasons f...
Methods for the identification of gas chromatographic separated components of essential oils have b...
Abstract: We developed a method for quantitatively analyzing some components of the unsaponifiable f...
The paper describes a method that uses gas chromatography to quantitative determine the amount of fo...
International audienceEssential oils (EO) of nutmeg (Myristica fragan Houtt) have a different chemic...
peer reviewedThe profile of minor compounds, such as alcohols, sterols, free and alkyl fatty acids, ...
A quantitative analysis of the individual compounds in tobacco essential oils is performed by compre...
Analyzes of bio-oils obtained by direct liquefaction are obstructed by the interferences of the liqu...
Soft chemical ionization mass spectrometry (SCI-MS) techniques can be used to accurately quantify vo...
Bio-oil can be an important fuel resource for automobiles in the future,while its complex compositio...
One hundred nine oil samples were separated chromatographically to obtain oil fractions with a decre...
Essential oils are concentrated hydrophobic liquids, consisting of volatile compounds. This thesis e...
Gas chromatography coupled to mass spectrometry (GC-MS) and comprehensive two-dimensional gas chroma...
This paper describes a chromatographic method to fractionate volatile oils and to identify their ses...
In recent years the study of the volatile components of natural products has been enormously extende...
The paper reports basic modern methods for isolating terpenes, outlines the advantages and reasons f...
Methods for the identification of gas chromatographic separated components of essential oils have b...
Abstract: We developed a method for quantitatively analyzing some components of the unsaponifiable f...
The paper describes a method that uses gas chromatography to quantitative determine the amount of fo...
International audienceEssential oils (EO) of nutmeg (Myristica fragan Houtt) have a different chemic...
peer reviewedThe profile of minor compounds, such as alcohols, sterols, free and alkyl fatty acids, ...
A quantitative analysis of the individual compounds in tobacco essential oils is performed by compre...
Analyzes of bio-oils obtained by direct liquefaction are obstructed by the interferences of the liqu...
Soft chemical ionization mass spectrometry (SCI-MS) techniques can be used to accurately quantify vo...
Bio-oil can be an important fuel resource for automobiles in the future,while its complex compositio...
One hundred nine oil samples were separated chromatographically to obtain oil fractions with a decre...
Essential oils are concentrated hydrophobic liquids, consisting of volatile compounds. This thesis e...
Gas chromatography coupled to mass spectrometry (GC-MS) and comprehensive two-dimensional gas chroma...
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