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Study of the retention mechanism for organic and inorganic ions in HILIC with silica- and poly(styrene-divinylbenzene)-based stationary phasesтезисы доклада Тезисы
- Авторы: Smagina M.A., Shemiakina A.O., Ivanova E.D., Chernobrovkina A.V., Shpigun O.A.
- Сборник: Book of abstracts XIII International Conference on Chemistry for Young Scientists “Mendeleev 2024”
- Тезисы
- Год издания: 2024
- Место издания: VVM Publishing LLC
- Первая страница: 355
- Последняя страница: 355
- Аннотация: Hydrophilic interaction liquid chromatography (HILIC) is a modern promising method for the separation and determination of polar compounds. The retention mechanism in HILIC is complex and still not fully understood. It is considered that adsorption, partitioning, and electrostatic interactions may contribute simultaneously to retention. In the case of mixed-mode stationary phases based on hydrophobic polymer substrate, additionally hydrophobic and π-π interactions take place. Understanding the processes occurring in the chromatographic system makes it possible to find new approaches for characterization of adsorbents, and to control the separation efficiency and selectivity in HILIC mode. In this work, a set of test ions was selected: p-toluenesulfonate, alkylsulfonates, chloride, nitrate, single- and double-charged inorganic cations. Their retention mechanism was studied for silica- and poly(styrene-divinylbenzene)-based (PS-DVB) stationary phases (SP) with predominant anion-exchange properties. The realization of different types of interactions were studied using models derived for other chromatography modes. This work was supported by the Russian Science Foundation (project No 20-13-00140).
- Добавил в систему: Хрисанфова Анна Олеговна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | Mendeleev2024_Smagina_abstract.pdf | 615,2 КБ | 15 октября 2024 [anyashem] | |
| 2. | Экспертное заключение | Экспертное_Смагина_СПб.PDF | 1,1 МБ | 15 октября 2024 [anyashem] |