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Thermodynamics of the Sorption of Benzimidazoles on Octadecyl Silica Gel from Water–Methanol Eluents

  • Chemical Thermodynamics and Thermochemistry
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Abstract

The standard enthalpy and entropy component of transferring benzimidazoles from water-methanol solutions to surfaces of octadecyl silica gel are determined using reversed-phase high-performance liquid chromatography (RP HPLC). The dependences between the enthalpy and polarizability of the molecules of the studied benzimidazoles, the enthalpy and the entropy factor are studied, and the influence of the quantitative composition of the water-methanol solution on the enthalpy are studied.

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Authors and Affiliations

  1. Samara National Research University, Samara, 443086, Russia

    R. V. Shafigulin & A. V. Bulanova

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  1. R. V. Shafigulin
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  2. A. V. Bulanova
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Correspondence to R. V. Shafigulin.

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Shafigulin, R.V., Bulanova, A.V. Thermodynamics of the Sorption of Benzimidazoles on Octadecyl Silica Gel from Water–Methanol Eluents. Russ. J. Phys. Chem. 92, 220–225 (2018). https://doi.org/10.1134/S003602441802019X

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  • DOI: https://doi.org/10.1134/S003602441802019X

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