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Titel (primär) H/D-isotope fractionation due to aqueous phase diffusion – Deuterated hydrocarbons revisited
Autor Kopinke, F.-D.; Georgi, A.
Journal / Serie Chemosphere
Erscheinungsjahr 2020
Department TUCHEM
Band/Volume 258
Seite von art. 127357
Sprache englisch
Keywords Isotopic fractionation; Aqueous phase diffusion; Deuterated organic compounds; Diaphragm cell
Abstract Diffusive isotope fractionation of non- and perdeuterated benzenes and toluenes in aqueous solution was investigated. The experimental method was based on a Stokes diaphragm cell. The isotope composition of diffusate and retentate was found to be identical within a range of uncertainty of ±5‰ for benzene and ±10‰ for toluene. These data are consistent with a previous fractionation study using phase-transition kinetics as the potentially fractionating step. The present study contributes to strengthening the data base for diffusive isotope fractionation of organic compounds in aqueous solution. According to the presented data, diffusion of naturally occurring, monodeuterated organic compounds does not significantly affect their hydrogen isotope pattern.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=23259
Kopinke, F.-D., Georgi, A. (2020):
H/D-isotope fractionation due to aqueous phase diffusion – Deuterated hydrocarbons revisited
Chemosphere 258 , art. 127357