Novel Mixed-Mode Adsorbents for HPLC Based on Different Substrates Modified with Eremomycinстатья
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Дата последнего поиска статьи во внешних источниках: 17 апреля 2024 г.
Аннотация:New adsorbents based on silica and polystyrene–divinylbenzene (PS–DVB) for hydrophilic interaction liquid chromatography (HILIC) with eremomycin in functional layers were obtained. The chromatographic properties of the new adsorbents were assessed using the Tanaka test for hydrophilic stationary phases and by studying the retention of substances of various classes in HILIC, chiral, and reversed-phase chromatography modes. It was shown that the use of eremomycin to create functional layers leads to an increase inthe hydrophilicity of the adsorbents on different types of substrates and ensures the shielding of their charge. Eleven nitrogenous bases, nucleosides with an efficiency of up to 25000 tp/m, or seven vitamins with an efficiency of up to 40000 tp/m can be separated on a modified adsorbent based on aminopropyl silica, and threedifferent HPLC modes can be implemented on the adsorbent with eremomycin based on PS–DVB.