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Journal of Analytical Chemistry

, Volume 67, Issue 9, pp 754–760 | Cite as

Effect of chemical modification on the adsorption and chromatographic properties of aluminas

  • E. Yu. Yakovleva
Articles

Abstract

The effect of chemical modification by sodium hydrogen carbonate on the adsorption and chromatographic properties of aluminas was studied by low-temperature nitrogen adsorption followed by thermal desorption, IR spectrometry, and gas chromatography. It was found that, at a decrease in the volume of micropores, adsorption and desorption proceed in mesopores. It was shown that, at the higher chemical homogeneity of the alumina surface, the symmetry of the chromatographic peaks and the efficiency of the column are considerably improved.

Keywords

gas chromatography alumina chemical modification surface study chromatographic properties 

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Copyright information

© Pleiades Publishing, Ltd. 2012

Authors and Affiliations

  • E. Yu. Yakovleva
    • 1
  1. 1.Boreskov Institute of Catalysis, Siberian BranchRussian Academy of SciencesNovosibirskRussia

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