A Simplified Analytical Procedure for the Determination of Organically Bound Halogens in Salt‐containing Water Samples |
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| Authors: | Helko Borsdorf Petra Fiedler Dorit Wilke Holger Weiß |
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| Abstract: | A method was developed for the determination of organic halogens in water samples with the aim of minimizing matrix effects and simplifying the sample preparation technique commonly used. The method is based on the adsorption of organic halogens in modified hydrophilic divinylbenzene polymer columns and their elution with methanol. The adsorbent used enables rapid adsorption and desorption due to comparatively high operating flow rates and minimized solvent amounts. Furthermore, no additional reconcentration steps are needed. The methanol extract obtained is combusted with a standard EOX (extractable organic halogen) analyzer and the concentration of organically bound halogens is determined by microcoulometric analysis. The matrix effects are considerably reduced compared to the standard procedure (EN 1485) commonly used. A detection limit of 13 μg/L was established. |
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| Keywords: | Halogenated Compounds Solid‐phase Extraction Microcoulometric Analysis Water Analysis Halogenorganische Verbindungen Festphasenextraktion Mikrocoulometrische Analyse Wasseranalytik |
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