New hyperbranched zwitterionic sorbents for HPLC and methods for controlling their separation capacity
- Authors: Chernobrovkina A.V.1, Kryzhanovskaya D.S.1, Uzhel A.S.1, Sobolev N.A.1, Tsizin G.I.1, Shpigun O.A.1
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Affiliations:
- Department of Chemistry, Lomonosov Moscow State University
- Issue: Vol 80, No 11 (2025)
- Pages: 1175-1188
- Section: ORIGINAL ARTICLES
- Submitted: 17.11.2025
- URL: https://journals.rcsi.science/0044-4502/article/view/351852
- DOI: https://doi.org/10.7868/S3034512X25110056
- ID: 351852
Cite item
Abstract
A series of sorbents based on silica gel with zwitterionic functional layers attached via a spacer based on 1,4-butanediol diglycidyl ether was synthesized. The influence of structural fragments of the stationary phase on chromatographic properties in hydrophilic interaction chromatography was studied, and the multifunctional separation capabilities for neutral polar, hydrophobic, and negatively charged compounds were demonstrated. Based on the identified patterns, a sorbent with high separation capacity for carboxylic acids was developed, enabling the separation of 13 organic acids in 25 minutes with a resolution of at least 1.0.
About the authors
A. V. Chernobrovkina
Department of Chemistry, Lomonosov Moscow State University
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
D. S. Kryzhanovskaya
Department of Chemistry, Lomonosov Moscow State University
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
A. S. Uzhel
Department of Chemistry, Lomonosov Moscow State University
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
N. A. Sobolev
Department of Chemistry, Lomonosov Moscow State University
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
G. I. Tsizin
Department of Chemistry, Lomonosov Moscow State University
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
O. A. Shpigun
Department of Chemistry, Lomonosov Moscow State University
Author for correspondence.
Email: chernobrovkina@analyt.chem.msu.ru
Moscow, 119991, Russia
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