Silicic acid column chromatography: Parameters for a binary solvent system View Full Text


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Article Info

DATE

1967-11

AUTHORS

D. G. McConnell, R. L. Hoffmann, G. J. Elman, C. D. Evans

ABSTRACT

The elution characteristics of methanol-benzene solvent systems were determined by separating a mixture of polar and nonpolar fatty methyl esters by liquid chromatography on silicic acid columns. A series of curves were plotted showing the relationship between the elution volume of each component and methanol concentration of the stationary phase. The resulting graphs serve as a basis for predicting elution conditions for separating other polar materials. Adsorption isotherms were plotted from equilibrium studies of methanol-benzene systems on silicic acid. Methanol concentrations of the effluents from various columns were determined by refractive index. An abrupt concentration change occurs in the methanol content of the effluent when the mobile solvent is either richer or poorer in methanol than the equilibrated solvent. Elution position of this abrupt change depends upon the concentration of methanol in both the mobile and the stationary phases. The procedure has been rigorously standardized because small variations in the amount of methanol on the column create large differences in elution volumes. More... »

PAGES

641-644

References to SciGraph publications

  • 1961-03. Analyses of lipids and oxidation products by partition chromatography. Fatty acid hydroperoxides in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1965-09. Chromatographic studies on oxidative and thermal fatty acid dimers in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1965-08. Flavor evaluation of natural soybean oils of high and low linolenate content in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1962-06. Analyses of lipids and oxidation products by partition chromatography: Hydroxy fatty acids and esters in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
  • 1961-03. Analyses of lipids and oxidation products by partition chromatography. Dimeric and polymeric products in JOURNAL OF THE AMERICAN OIL CHEMISTS' SOCIETY
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    http://scigraph.springernature.com/pub.10.1007/bf02680033

    DOI

    http://dx.doi.org/10.1007/bf02680033

    DIMENSIONS

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