Comparison of Hydrophilic Polymeric Sorbents for On-Line Solid-Phase Extraction of Polar Compounds from Aqueous Samples |
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| Authors: | N. Fontanals M. Galià R. M. Marcé F. Borrull |
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| Affiliation: | 1. Department of Analytical and Organic Chemistry, Universitat Rovira i Virgili, Imperial Tàrraco, 1, 43005, Tarragona, Spain
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| Abstract: | Two 4-vinylimidazole-divinylbenzene (4VIm-DVB) polymers were synthesized and applied as sorbents for on-line solid-phase extraction (SPE) followed by liquid chromatography for analyzing polar compounds in aqueous samples. The new sorbents (4VIm-DVB) were compared to another sorbent that had been previously synthesized by our group (N-vinylimidazole-divinylbenzene (NVIm-DVB)) and to the commercial OASIS® HLB and StrataTM X. All the sorbents enabled 100 mL of sample to be on-line concentrated with good recoveries for the studied polar compounds. Real water samples were analyzed using NVIm-DVB and OASIS® HLB as SPE sorbent, for which the best results were obtained. |
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