Synthesis of Silokhrom S-120 grafted with transition-metal acetylacetonate layers and its acid-base and chromatographic properties

We have synthesized sorbents based on Silokhrom S-120 silica gel grafted with Ni2+, Co2+, and Cu2+ acetylacetonate layers. Using pH measurements and a Hammett indicator method, we have studied the acid-base properties and composition of donor-acceptor centers on silica gel surfaces before and after modification. We have determined chromatographic retention parameters for test compounds and evaluated the polarity and selectivity of the sorbents. Modification with acetylacetone chelates has been shown to increase the surface acidity of Silokhrom S-120, leading to changes in various types of intermolecular interaction

Use of silochrome with grafted layers of transition metal acetonates for sorption concentration of volatile organic substances from aqueous media

Sorbents based on silica of Silochrome S-120 brand with covalently attached layers of transition metal acetylacetonates were synthesized. The sorption properties of the resulting chelate-containing materials were studied and the analytical potential of their application for rapid sorption concentration of volatile organic compounds from water bodies was evaluated

Synthesis of Silokhrom S-120 grafted with transition-metal acetylacetonate layers and its acid-base and chromatographic properties

We have synthesized sorbents based on Silokhrom S-120 silica gel grafted with Ni2+, Co2+, and Cu2+ acetylacetonate layers. Using pH measurements and a Hammett indicator method, we have studied the acid-base properties and composition of donor-acceptor centers on silica gel surfaces before and after modification. We have determined chromatographic retention parameters for test compounds and evaluated the polarity and selectivity of the sorbents. Modification with acetylacetone chelates has been shown to increase the surface acidity of Silokhrom S-120, leading to changes in various types of intermolecular interaction

Use of silochrome with grafted layers of transition metal acetonates for sorption concentration of volatile organic substances from aqueous media

Sorbents based on silica of Silochrome S-120 brand with covalently attached layers of transition metal acetylacetonates were synthesized. The sorption properties of the resulting chelate-containing materials were studied and the analytical potential of their application for rapid sorption concentration of volatile organic compounds from water bodies was evaluated