Interaction of Thiosemicarbazides with Cyanopropyl Silica Gel
- Authors: Ul’yanov A.V.1, Polunin K.E.1, Polunina I.A.1, Buryak A.K.1
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Affiliations:
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Issue: Vol 81, No 6 (2019)
- Pages: 790-796
- Section: Article
- URL: https://journals.rcsi.science/1061-933X/article/view/204483
- DOI: https://doi.org/10.1134/S1061933X19050181
- ID: 204483
Cite item
Abstract
The interaction of ethyl-, allyl-, and phenyldimethylthiosemicarbazide with silica gel with grafted cyanopropyl groups has been studied in aqueous and organic solutions under the conditions of normal- and reversed-phase liquid chromatography. The influence of liquid phase composition and temperature on the separation of reaction mixtures of thiosemicarbazides and isothiocyanates in a Zorbax-CN column has been investigated. The elution order of ethyl-, allyl-, and phenyldimethylthiosemicarbazide has been found to be the same when using their aqueous and organic solutions. The selectivities of silica gels with grafted cyanopropyl and octadecyl groups have been compared. Thermodynamic parameters have been determined for the adsorption of the thiosemicarbazides on the modified silica gels.
About the authors
A. V. Ul’yanov
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: akburyak@mail.ru
Russian Federation, Moscow, 119071
K. E. Polunin
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: akburyak@mail.ru
Russian Federation, Moscow, 119071
I. A. Polunina
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: akburyak@mail.ru
Russian Federation, Moscow, 119071
A. K. Buryak
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Author for correspondence.
Email: akburyak@mail.ru
Russian Federation, Moscow, 119071