Accepted Manuscript Combined tracer through-diffusion of HTO and 22 Na through Na-montmorillonite with different bulk dry densities Martina Bestel, Martin A. Glaus, Sabrina Frick, Thomas Gimmi, Fanni Juranyi, Luc R. Van Loon, Larryn W. Diamond PII: S0883-2927(18)30092-1 DOI: 10.1016/j.apgeochem.2018.04.008 Reference: AG 4071 To appear in: Applied Geochemistry Received Date: 22 November 2017 Revised Date: 20 April 2018 Accepted Date: 21 April 2018 Please cite this article as: Bestel, M., Glaus, M.A., Frick, S., Gimmi, T., Juranyi, F., Van Loon, L.R., Diamond, L.W., Combined tracer through-diffusion of HTO and 22 Na through Na-montmorillonite with different bulk dry densities, Applied Geochemistry (2018), doi: 10.1016/j.apgeochem.2018.04.008. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.