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

Authors

IWONA RYKOWSKA
WIESLAW WASIAK

Abstract

The applicability of silica gel, modified with ketoimine groups, to solid phase extraction (SPE) was tested. Basic characteristics of the modified silica were determined using elemental analysis, and ^{29}Si 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 (SPE) and gas chromatography are presented. The determined recovery rates were about 95%-98%.

DOI

10.3906/kim-0909-261

Keywords

Modified silica, solid-phase extraction SPE, sorbents, hydrocarbon analysis.

First Page

457

Last Page

464

Recommended Citation

RYKOWSKA, I, & WASIAK, W (2010). Evaluation of solid-phase extraction sorbent with ketoimine groups for the preconcentration of benzene and phenolic compounds in water. Turkish Journal of Chemistry 34 (3): 457-464. https://doi.org/10.3906/kim-0909-261