Evaluation of solid-phase extraction sorbent with ketoimine groups for the preconcentration of benzene and phenolic compounds in water

Authors : İwona RYKOWSKA, Wiesllaw WASIAK

Pages : 457-464

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The applicability of silica gel, modified with ketoimine groups, to solid phase extraction insert ignore into journalissuearticles values(SPE); was tested. Basic characteristics of the modified silica were determined using elemental analysis, and 29Si CP MAS NMR spectroscopy, as well as measurement of specific surface area. Some applications of the sorbent studied to preconcentration and further determination of organic compounds, such as benzene, phenol, and o-chlorophenol, by means of solid-phase extraction insert ignore into journalissuearticles values(SPE); and gas chromatography are presented. The determined recovery rates were about 95%-98%.
Keywords : Modified silica, solid phase extraction SPE, sorbents, hydrocarbon analysis