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Benzene and its 34 C7-C10 alkyl derivatives have been determined in Warsaw urban air using gas chromatography techniques and, as an enrichment step, solid phase adsorption in the traps filled with Carbotrap and Carbotrap C followed by thermal desorption. To adopt the known methods for the determination of a vast array of aromatic hydrocarbons and to estimate errors resulting from the lack of selectivity...
The preparation, characterisation and potential applications of silica stationary phases with chemically bonded transition metals complexes have been presented. New packings have been synthesised by attaching copper(II) and chromium(III) chlorides to the silica surface through ketoimine groups. These packings facilitate the studies on the electron-donor nature of the interactions occurring between...
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