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Retention regularities of alkanols on zeolite 13X column under conditions of normal-phase high-performance liquid chromatographyстатья Исследовательская статья
- Авторы: Kazakova Viktoriia D., Rozhmanova Nina B., Lanin Sergey, Nesterenko Pavel N.
- Журнал: SSRN Electronic Journal
- Год издания: 2024
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- DOI: 10.2139/ssrn.4955564
- Аннотация: The retention regularities on a column packed with microspherical zeolite 13X particles were studied for different classes of compounds (alkanes, aromatic substances, oxygen-, nitrogen-, chlorine-, and sulfur-containing compounds) under conditions of normal-phase high-performance liquid chromatography (NP HPLC) using methanol and acetonitrile as mobile phases. In general, the retention (logk') of studied substances having kinetic diameter less than zeolite pore size is proportional to their polarity. The retention of organic substances was compared for 13X and mesoporous silica columns. A special attention was paid to the retention of n-and iso-alcohols homologues, for which a clear molecular size effect was observed. It was found that retention factors (k') of solutes on 13X depend strongly on flow rate of the mobile phases indicating the presence of kinetic selectivity effect for the microporous adsorbent. For the first time the baseline separation was obtained for the low homologues of n-alkanols. Also, the possibility of the separation of methanol and deuteromethanol is demonstrated with acetonitrile as the eluent.
- Добавил в систему: Казакова Виктория Дмитриевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | SSRN-id4955564_Kazakova.pdf | 3,6 МБ | 18 октября 2024 [NesnterenkoPN] |