Characterization of sorption gels used for determination of mercury in aquatic environment by diffusive gradients in thin films technique |
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| Authors: | Pavel Divi? Roman Szkandera Hana Do?ekalová |
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| Institution: | (1) Faculty of Chemistry, Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Purky ova 118, 61200 Brno, Czech Republic;(2) Laboratory of Analytical and Environmental Chemistry, Faculty of Sciences, Vrije Universiteit Brussels, Pleinlaan 2, 1050 Brussels, Belgium |
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| Abstract: | The influence of pH, ionic strength and selected natural ligands on the measurement of mercury by the diffusive gradients
in thin films technique (DGT) using recently introduced sorption gels was determined. Sorption gels containing Chelex 100,
Spheron-Thiol, Duolite GT73 and modified Iontosorb AV resins were investigated, with the sorption capacity determined for
all used sorption gels. The minimum DGT measurable concentrations were calculated from 3 times the standard deviation of mercury
amount in unexposed sorption gels.
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