Direct Measurement of Aqueous Mercury(II): Combining DNA-Based Sensing with Diffusive Gradients in Thin Films
Kunfu Pi, Juewen Liu, Philippe Van Cappellen
Abstract
binding to the DNA in the sensing layer were successfully accounted for by equilibrium speciation calculations and temperature-corrected, multicomponent diffusion coefficients for aqueous Hg(II). The results therefore support the use of the DNA-DGT sensor as an alternative to traditional sampling and analysis methods for measuring aqueous Hg(II) concentrations down to the nanomolar level in freshwater environments.
Topics & Concepts
Diffusive gradients in thin filmsAqueous solutionChemistryMercury (programming language)Analytical Chemistry (journal)Dissolved organic carbonEnvironmental chemistryDiffusionMetalPhysical chemistryOrganic chemistryThermodynamicsComputer scienceProgramming languagePhysicsMercury impact and mitigation studiesPharmaceutical and Antibiotic Environmental ImpactsElectrochemical Analysis and Applications