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Ion-Exchange Properties of Silica Gel with Covalently Bonded Histidine
journal contribution
posted on 2023-05-16, 21:26 authored by Nesterenko, PN, Kebets, PAThe ion-exchange and acid-base properties of Silasorb 600 (10 μm) with immobilized histidine (His-SiO2) were investigated. The acid-base properties of the sorbent were estimated from the dependence sof the retention of organic acids and bases on the eluent pH. The effect of various organic modifiers (benzoic, citric, oxalic, and sulfuric acids) and the eluent pH on the retention of inorganic ions was studied. It was shown that His-SiO2 exhibits anion-exchange properties in acidic and weakly acidic media at pH < 5.7. Eight anions were separated under optimal conditions on a 150 × 4.6-mm column in 21 min using a 5 mM oxialic acid solution as an eluent. © Nauka/Interperiodica 2007.
History
Publication title
Journal of Analytical ChemistryVolume
62Pagination
2-7ISSN
1061-9348Department/School
School of Natural SciencesPublisher
SpringerPlace of publication
New YorkRepository Status
- Restricted