Diffusion of PAH in Potato and Carrot Slices and Application for a Potato Model

作者: Stefan Trapp , Anita Cammarano , Ettore Capri , Fredrik Reichenberg , Philipp Mayer

DOI: 10.1021/ES062418O

关键词: ConductivityMass transferAnalytical chemistryEnvironmental engineeringChemistrySink (geography)FluorantheneAnthraceneNaphthalenePhenanthreneThin layers

摘要: A method for quantifying the effect of medium composition on diffusive mass transfer hydrophobic organic chemicals through thin layers was applied to plant tissue. The employs two silicone disks, one serving as source and sink a series PAHs diffusing water, potato tissue, carrot Naphthalene, phenanthrene, anthracene, fluoranthene served model substances. Their from disk measured by HPLC determine velocity rate constant proportional conductivity. flux tissue modeled using Fick's first law diffusion. Both experimental results suggest that occurs predominantly pore water that, therefore, ratio between is independent hydrophobicity chemical. findings this study provide convenient estimate diffusion nonvolatile...

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